We all doing something currently we might have job side business or actual circle of people in some field.
So what Ever you do just do it better and that's how you get wealth.
Stop looking for things what you don't do it but improve those things what you allready doing it Im sure many of you are involved in crypto so get better with crypto.
What Ever you do it now just get better on this you don't need to search for things what to start just improve things what you have now.
I wouldn't call what you stated here as advice given because every one of us that is doing something differently, doesn't mean such things are been fruitful to us. There are things one could engage in and it won't be that fruitful to them no matter how long they try. You don't advise such a person to stick with that for long without having some other things they can highly think of to do. Remember, in today's economy, having a single source of income is not advice. Having a diverse side hustle is encouraged. The advice should be to try hard to be consistent in them all because you don't know the exact one that will later pay off in the future