A cousin shared his 5 year rule with me recently - if you want to be successful at something hard and probabilistic, commit and do it for 5 years.
Success = Execution x Opportunity
It takes a few years to learn, make mistakes, understand the game, know the players, become known, and build trust in any new domain. The longer you play the game, the more skillful and “luckier” you become. Overnight success is a myth. You have to risk it and work it to get the biscuit.
Such commitment isn’t easy, especially during the early years when nothing seems to work out. You need to pick a game that you enjoy, have high conviction in, and leverages your aptitude, resources, and talents. You need to drop many other games that are also enticing. You need staying power (money, time, emotional fortitude, support) to sustain the 5 years.