I've got 1000 USD and a strategy that makes sense and has a good profit factor. But how do I calculate best optimal fixed fraction % for it? Clearly if I risk 1% or 2% per each trade, I am not going anywhere and equity is not utilized at its fullest potential... on the other hand if I trade let's say risking 90% of equity on each trade, I am playing with fire and about to blow up my account, right? So how do you calculate best MM FF% ? What do you use for educated guess then?