You can avoid your fear in trading by investing very small amount or the amount which is completely affordable for you to lose,then just do trading just like the gambling if you don't have any knowledge but you will learn from your mistakes once you started but long term trading is good to start initially for the beginners.
I suppose you to manage your time for learning first. I dont think that you can learn from your mistake easily without knowledge. Because to do investing or trading on coins, you definitely obtain the knowledge in order to understand about it. Especially when you unfortunately get loss, you have to understand what led you to that mistake, and then you can learn from it. Almost people come to this market, both have fear of loss in trading, but anyway you have to control your fear. To get away from fear, you need to be more confident, you need time to build experience and skills gradually. In a nutshell, let determine your fear and try to conquer it.