I thought there's 10 you made. That's correct when you said that never invest to one project or coin at all.
Diversify all of your money so when there's a correction you can still recover somehow in some coins because not all are crashing when the market is starting to be in red.
1. Invest money you can afford to lose. basic rule of investor, doesnt matter if in crypto or fiat.
Never forget this ^.
There's no shortcut to success whether you are a small or big investor, you can't become rich overnight.