Twitter's self made entrepreneurs are the worst, the endless threads how they make $50kPCM FROM THESE FEW TIPS. It's just modern day self-help gurus cashing in from a bit of influencing and self brand.
As many people on this thread have said, this stuff is hard, and mainly about luck and of course all the stories that we hear are about success.
I wouldn't discourage people to try though, if enough of us try one of us will make it. Just know that you'll probably fail, and as the op says, protect your mental health.