Buy, sell crypto strategy

I've been struggling with understanding the crypto market, I watched numerous videos about how to do it and in the end, after 3 years, I finally understood, that's no one has any clue how the market gonna go. All the charts, strategies, it's all bunch of boloney! So, how do you play the game? Simple! If the market going up - sell, if it's going down - buy. Didn't I say it was simple? :-) Just make sure you have some of each... fiat and crypto on hand in order to do ether.