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.
But do not you think that trading that way is a completely waste of time? In order to make any kind of significant profits out of this market then this means that you need to put at risk an amount money that is important for you, if you do not do that the chances of losing all your money are zero but the chances of making a lot of money are zero as well.