Op all the factors you have listed here are good ones but I will add on to the list which is greediness. When you are trading don't be greedy because greediness will make you to lose all your funds plus the capital and the small profit you have gotten. They said experience is the best teacher. I learned my lesson in my first trading days. I deposited the money in the trading account and I make small profit of $20 and instead of me to apply your number I was thinking to had more profit and suddenly before I knew everything just disappeared. And I lost everything in the process of trading.

So when trading be conscious of the movement and stopped at the time when you have made profit even if it is small. And when lost in the process of trading don't panic calm down and apply the last option to be over the emotion.