A good investor can minimize their loss and inexperienced investor always lose their funds because good investors always first learn and then trading starts but inexperienced investor takes tension in their mind and sells at a low price but every time should wait if you hold the altcoin price is low. so patience is compulsory for minimizes the loss.
As long as we are patient when we are in the loss we can always wait for another bull market to recover our loss, It's true many new traders only have a little control to their emotions because it's their new feeling. Also many new investors didnt do some research about the project that they want to invest and in the end, their money gone without any responsibility from the project, we should learn how to find a good project with a good future, a good team, a good roadmap, etc.