It's the Decision of the Market

The market will tell you on any given trade how much money you are going to win (or lose, or break even). It will tell you this quite simply, by how well it is moving or not moving in your direction. If you think, contrary to this, that you have any influence on the outcome of the trade, or that you "deserve" to win more, you will probably overreach yourself. The market will let you know the range you are going to be in; your job is to maximize it.

This maximizing of your trade may mean winning $1,100 instead of $1,000, but it also might mean losing only $500 instead of $600.

The market and circumstances, good or bad, will tell you the baseline range you are going to be in. Your job as a trader is to get to the top of that range, and to make the most out of each trade.