Win or lose, everybody gets what they want out of the market. Some people seem to like to lose, so they win by losing money.
Risk no more that you can afford to lose, and also risk enough so that a win is meaningful.
A losing trader can do little to transform himself into a winning trader. A losing trader is not going to want to transform himself. That's the kind of thing winning traders do.
It is a happy circumstance that when nature gives us true burning desires, she also gives us the means to satisfy them. Those who want to win and lack skill can get someone with skill to help them.