Even when your trading logic is solid, and based on watching other successful people, following the logic is the hardest part. It's simply not that easy, emotions get in the way.
You should never allow your emotions take control of your intellect. I think emotions should be kept away when you are trading. If you are very emotional then a quick dump and lose can give you nervous breakdown. When you a solid logic and you are following experienced people you will achieve your target. Just set your mind before starting any trade that you will either win or lose, but both will add to experience. Positive hopes will keep you going.
. However, we don't have any choice but to do so because these things could lead us to worse situations. I know it's hard in the beginning but you can get used to it in the long run 
.