I know a lot of traders since forex become my hobby. Some of them quitted a long time ago, some of them are still on the market but there is one mistake that they share - overtrading. It is like a curse for traders. Perhaps unavoidable. Don't get me wrong, I am not an exception. I think that this is the biggest problem for all traders.
In other words, what overtrading is that you make more deals than you should. This is happening when a trader set goals for a period of time that that he just can't achieve and he is making deal after deals which often leads to the end of his forex career.
The solution - just do not set any goals. Lean to be patience and don't push your luck. Enter the market when you have a clue. You won't improve with more meaningless deals and you won't become millionaire in no time.