i read this and see myself. everyone had such mistakes. the market makes you do what it want. Probably if you feel you need to sell, this is the moment you need to wait 
every person of course has an error, bro. especially I personally also have errors. because the current situation is very alarming compared to the previous situation, so many people think short, and most people also panic. therefore many of us make mistakes.
the mistakes you made in the past still gave you something in return. Insight through experience. You can never get these lessons by reading a book. Learn from your mistakes, move on, makebetter decisions in the future.