A large percentage of your photos are not suited to be stock images but a minority of them are. You have taken many landscape and architectural photos that would make fine stock photos. But if that's not what you want then that's the way it is.

Cryptocurrencies have historically rallied violently and within very short timeframes but have taken their time to correct. I'm afraid we might be in for another year or so of a bear market. But selling for the purpose of buying at the bottom does not strike me as a particularly good idea because the bottoming will only be known after the fact and because a single exceptionally good piece of news can start major FOMO at any time.