i think we should admit that learning is a continous process and no matter what level of knowledge you have in crypto, you still would have to learn new things. Sometimes learning comes from commiting mistakes.
Mistake is the best teacher they say. We should know to learn through our own mistake or else we keep making the same mistake. In crypto we can make many mistakes but from that we learn a lot that would make us grow and become even wiser. I don't believe no one here made a mistake from the past because me I made a lot of mistakes but I consider them a good teacher.