I recommend "Trading in the Zone" by Mark Douglas - helped me a lot with emotions.
YouTube is full of people who claim to know a lot but actually... they don't know shit. It's very easy to get misleaded by someone who only started trading in the 4 year bull market we had.
If you want to learn from someone with real experience, search for Krown Crypto Cave on YouTube. Don't take my word for it, watch his livestreams and you'll see. Only since I found him I can say I became a consistent trader. He offers SO MUCH info for free, but also has a paid course.
If anyone want to learn more about it, feel free to ask below.