Bad experiences happen to a lot of people but for that, you can’t leave them behind. You can use your bad experiences as lessons and use them to improve your knowledge. By doing this you can achieve something better than what you have lost before.
even for a professional, I think I've done bad things in making decisions. but it is the experience that can mature us if we want to learn and later do not repeat the same mistakes. from each of these mistakes that become natural selection as a trader to still be able to survive in this world