What is the worst thing that a newbie can do in a trade? Me, I would think that if they trade before they open a demo or have sufficient practice and they jump in with big capital in hope just to scalp and then lose it all. I'm sure this is how gamblers do it just to find out that they can't conquer scalping. The worst thing for a newbie to do is use high leverage as well cause they can get mc really quickly as well.