Building unshakable confidence for success

What if every thought, every success and every positive experience you've had could be turned into a force strong enough to push you past doubt, fear and hesitation? That's confidence, and it is the foundation of every success, especially in investing. Not luck. A skill, a process, and above all a mindset. Think of it as a mental bank account: every positive thought you deliberately focus on, every win you actually stop to register, is a deposit. Over time those deposits compound exactly like a portfolio. The problem is that most people let setbacks, failures and fear drain the account faster than they fill it, and they never learn how to make deposits consistently.

I learned that the hard way. Early in my career I was driven and deeply unsure of myself, and I remember facing a deal worth millions that could either establish my reputation or ruin it. I was paralyzed: overthinking every detail, rereading the same pages. The turning point was almost embarrassingly simple. I made myself focus on past successes, however small. That single shift gave me clarity, then courage, and eventually the deal. Confidence has been my most valuable asset ever since, and not only in business.

Why confidence is an investing skill

Why does this matter so much for investors? One word: execution. The most brilliant strategy in the world is worthless if fear keeps you from acting on it. Confidence bridges the gap between what you know you should do and actually doing it. The performance psychologist Nate Zinsser describes confidence as a settled sense of certainty about your own ability, built on evidence, and that certainty is what lets you act decisively instead of hovering.

I've built at Infinity⁹ across ten countries and many asset classes, and what I can tell you honestly is that the analysis was never the hard part. Spotting a trend and having the conviction to act on it are entirely different capacities, and the second is the rarer one. Whether I'm negotiating with international investors or moving into an emerging market, the edge isn't only knowing: it's executing without flinching. And this isn't reserved for people at scale. Confidence is a skill anyone can build, and combined with sound strategy it is what makes a person hard to stop.

Let me get specific about the cost of not having it. How many times have you hesitated, second-guessed yourself, or let doubt make the decision for you? Missed a good opportunity, avoided a calculated risk, delayed a move that would have changed things? I've been there. One of my hardest calls was a luxury real estate development in Miami: the market was volatile, the stakes were high, and my own team wasn't unanimous. Every instinct told me it was the right move, and fear crept in anyway. What changed it was pausing to remember every deal I had actually executed before, and letting that evidence outweigh the noise. That clarity didn't just calm my nerves, it produced the courage to move, and that development became one of the strongest positions in my portfolio.

How to make deposits

So, practically. First, selective memory deposits. Confidence is built by focusing on the right memories, so make a top-ten list of your own successes, including the ones nobody applauded: moments where you showed skill, resilience or leadership. Revisit it. When I co-founded a family office club in Miami the stakes felt enormous, and what carried me was leaning on the memory of past wins, like landing my first major international investor.

Second, the daily ESP reflection: effort, success, progress. Every evening, three questions. What effort did I give today? What small success did I achieve? Where did I make progress? This keeps the account growing on days that produced nothing visible, which is most days. During my recovery from a severe polo accident, that practice was what kept me oriented, because progress was the only measure available and it was still real.

Third, affirmations and visualization. Before any major decision I visualize the outcome in detail: the room, the people, the result. That rehearsal primes both body and brain to act. Write affirmations that fit your actual goals, something like I make bold, informed decisions, and rehearse them.

And failure? Inevitable, and it does not have to drain the account. I reframe it three ways: temporary, because one bad decision doesn't define your future; limited, because one event doesn't reflect your whole capability; and non-representative, because the failure is not your identity. I once backed a tech startup that failed inside a year. It hurt. But I analyzed what went wrong, applied the lessons, and those lessons still shape how I look at high-risk ventures. For the voice in your head there's a simple move: acknowledge the doubt, tell yourself to stop, and replace it with something constructive.

The withdrawal audit

This is what the runtime didn't get to teach, and I add it here as the extended class. Everything above is about deposits, and deposits are only half a bank account. Most people I coach are not short of achievements. They are short of balance, because something is withdrawing faster than they can deposit, and they've never looked at the debit column.

So run a withdrawal audit. For one week, note every moment your confidence drops, with one line: what happened immediately before. Then sort what you collected, because the withdrawals are almost always the same four. Comparison: measuring your interior against someone else's exterior, usually on a screen. Rumination: replaying a decision that is already made and cannot be changed. Reassurance-seeking: asking a fourth person what they think, which feels like diligence and is actually an outsourced verdict. And outcome-scoring: judging yourself by results that were never entirely yours to control, which means the market gets to set your self-worth every quarter.

Then install one counter for each of your top two. Against comparison: compare only to your own tape, the version of you from twelve months ago. Against rumination: give the replay a written end, either an action or a deletion, and stop reopening it. Against reassurance: decide in advance how many opinions you will collect, and close the list. Against outcome-scoring: grade the process you controlled, not the result you didn't.

And one rule that makes the whole banking metaphor honest: an affirmation you cannot back with a specific memory is not a deposit, it's a loan. It feels like capital right up until pressure arrives, and then it gets called. So pair every affirmation you use with one piece of evidence from your own life. Not I thrive under pressure, but I thrive under pressure, and here is the week that proves it. Borrowed confidence collapses at exactly the moment you needed it. Evidence doesn't.

The mirror

Start small and start today. Keep a journal of wins and reread it weekly. Run the ESP reflection at night. Rehearse the affirmations you can actually back. Visualize the obstacles and how you'd handle them before they arrive. And after every significant decision, review what went well, what could have been better, and what you'll carry forward. Greatness is built on small consistent actions, and confidence, like wealth, compounds over time.

So here's the question in front of the mirror: what is the last decision you were sure was right and didn't make? And this week, what is draining the account faster than you are filling it?

If you want to keep this conversation going each week, there is The Sunday Memo. Think like an ant: small steps, every day, move mountains.

Founder of Infinity⁹. Here I write in my own voice.