Diversifying away from crypto is also a good suggestion. Despite the fact that all the various types of crypto aim to solve different problems, they are all the same asset class. If you have made money on crypto, it is a great idea to invest in other assets. Real estate, stocks and precious metals are a good idea.
Although, I have to say, my experience with the regular stock exchanges was quite weird after only having experienced crypto exchanges. It's really slow motion!
I agree with you about stocks...especially knowing about the crypto space