Well you can play millions of poker hands online. Life isn't like that. You have only ~30 years, and you have 30 * 365 = 10950 hands if we count each day as a hand. So what you need to work on is how you define "success" in life. Money is a high variance objective, whereas self-improvement is a low variance objective. I think finding a good balance of variance and tolerance to risk is a key to happiness.
Rejecting the role of luck in our outcomes is delusional, and people who support it have something to peddle (if only their own personal brand as thought leaders).