One of the biggest mistakes in a bull market is to control emotions. Some people make a logical analysis that they will sell at a certain level, and when they reach that level, they find that all the news in the market is positive and that Bitcoin can reach $150,000 or even $200,000. Then, instead of just making a profit, they wait for those levels until the price correction begins.
Greed and reason cannot control emotions, it is a scenario that many people are facing, but on the contrary, there are also people who feel regret because they sold too early and then that coin increased x10 times again, so everything will be better if we learn to accept without looking back or comparing an assumption.