In 2004, while I was still in college, I bought Best Odds Corp and built MacPokerOnline under it, right as online poker was taking off. Online poker was the first trend I caught early, and it set the pattern for everything after: get in before it is obvious, size the bet, and let the math compound.
I played professionally. Poker at that level is a risk education you cannot get from a book: bankroll management, expected value on every decision, and the discipline to fold a good-looking hand when the numbers say fold. I still use all of it, every trading day.
The handle came first. I invented "AdioKing" when I was 13, carried it through the poker years, and it is still the name on my trading desk today, where I write as AdioKing on Patreon, X, and Reddit.
Poker also taught me the habit that runs my whole operation now: grade every call in public. At the table there is no hiding from your results. In my trading community, every Friday the week's calls get graded, wins and misses both. That started at a poker table.