With regard to emotions in trading, this point is difficult for beginners to do, maybe even some people who have been trading for a long time.
the rules made by beginners are quite simple, buy low and sell high. but to remain consistent in such a plan is quite difficult for beginners whose analytical skills may still be lacking. Just a little market movement in the opposite direction to the plan is enough to make beginners panic.
just do it with the flow, even though losing sometimes it makes the psychology of the trader better in emotional terms.