The main lesson is to understand the market, to know in which direction it goes, in what phase we are, why are we there
that's a good lesson you got there but the problem is that it is confusing to decide on what path is crypto going . we can then learn another lesson from that scenario and that is to dont easily trust what you see because that may tricked you unto something that is more dangerous .
studying books, such as Wyckoff, Livermore, who were first-rate speculators, also Buffet who is a sensational investor.
i recognize buffet among the other guys that you mention above . warren is really a well experienced man and we can get alot of experience from him regarding on the flow of cryptos .