one thing i can tell u about the psychology for profits and if u cant manage it u must do something about it,,, first of all u cant think profits u cant u cant specially if ur systematic, u cant watch the position and say omg this is too much money or enough money, ONCE AGAIN this is if ur systematic, u need to follow the system to where it says to exit not where u believe its a lot of money
i once struggled with this heavily 3 years ago, and it got to the point where i want to hire someone to put my trades for me and tell him to think in terms of X multiples where all he sees is enter X amount or 2X amount,,, enter here and exit here
another way to try to get over that psych is to treat ur self as an employee for ur self,,, if someone hired u and say enter at point x and exit at point y, then ur job is to do just that, regardless of the amount of money involved cuz the amount increases and decreases based on position size, whether the person is trading 10 lots or 1000 lots ur job is simply enter position size as instructed and enter trade on x and exit on y
u have to remove ur self and try to hide p/l tab if ur software allows it so that u only see the prices in the market and where u need to enter or exit,,,
another way also is to imagine as if ur someone else money, who is to say if 150 or 1500 or 15000 is a lot of money or a little?
if ur goal is to grow in terms of money u deal with whether ur own or now u must think percentage and not override ur system based on dollar amounts