I think emotion is the highest science in trading, because only we ourselves can fight it, so it is difficult to do or learn without doing it. practice in real.
It is our enemy, our emotion. It's pretty much easy to do things when you're not too emotional because it stops us from discovering things and that's making us think that we need to be limited in our activities especially in trading.
A lot of people go with their guts in trading and that makes them lose money because your guts are not always going to be right in trading, you will need to understand the market sentiments, search for news and updates, follow up with the charts and how the market has been moving recently and don't just buy a coin or a token just because you have a gut feeling that it will go up or don't sell your assets just because you think the market will dump shortly.
When we are trading, we should keep our emotions aside and trade based on facts, figures, and stats available in the market, because that is the only way we can actually evaluate the market and at least have an idea about which direction the market might move next even if we are not sure about it.