Reading chart and price prediction are the biggest problem.
same as happened with me.
it is the hardest thing and I try to learn by reading some guides.
it does not help and I still find it difficult.
one of the most difficult things is to control your emotions and patience.

sometimes i am having a problem to analyze the cart and price and the last time i missed the price is when the thc is increase. i am selling at 0.00000450 satoshi but the price is going to go up until 0.00000585 satoshi. actually my feeling says that the price will more than 0.00000550 satoshi but i am not following my feeling and i only sell at that price.