Exactly, when the skills is been neglected, it comes back to hurt. If you start trading without any prior knowledge and been successful as it, it's known as beginner luck and not you been a trader. Trading is a skill and just like other skills, it has to be learnt. The good news is that the learning process can be carried out anywhere in your apartment (and not must been a lecture hall) with the helps of media platforms like YouTube etc.

While actually knowing how to trade is very important also the capital used is very key as well. You can't expect to be very profitable when smaller capital are been used as it'll reduced your chances of getting the best out of your market but do know you'll also be exposing your capital to the market which is were the stop loss comes into effect.