How can i actually become wealthy? ( in bd)

I have seen so many young millionaires, YouTubers, content creators etc. became really wealthy at a very young age and now they're trying to help us to make money but eventually they end up selling their courses and all of their courses are literally bs.No one actually tells us how to get rich.so,what's the secret sauce ? How the h**l these people became so rich without any degrees! I've researched so much on "how to make money" but unfortunately i didn't get any valid answer. So,If anybody knows what's the secrets is, then please help us. I might seems dumb, but I'm really curious about it. Thank you.

(Sorry for my broken grammar)