There are some rules to keep in mind:
1. Never sell because the price looks high. For example, if you look at it from 10 to 20, what should you judge at this time is what is preventing them from 20-50?
2. Similarly, don't buy directly because of the high price in the previous period and a lot of drop. The decline is justified.
3. Never equalize the loss in your current account, as there is a high probability that you will lose more.
We are already in a fickle market, and more often there are no rules to follow, but setting up some own trading rules will reduce my losses.
Hope to communicate with everyone
I appreciate the guide you made but I want to mention a point you raised about selling when the price is high.
Remember that every investor has their respective goals set in mind. Whether an investor is short or long-term, the goal is always common- which is to profit at the end. Instead of selling everything when the price of your investment reaches an ATH, sell 40% and retain the %60 for re-investment. The percentage may vary depending on your current needs/goals but it is highly advisable that you prevent from cashing out all of your investments.