Money Management--stop loss

I am new to forex trading and I have been trading on a mock account. I also came up with a system that I like. Now with my way of doing it, I can get about 10-30 or so pips per trade. I aim for 10-20 per trade just to be safe since I can get about 3-4 trades a day to get a total of 30-40 a day. Now my question is although most trades do go in my favor 10-40 pips there are some fake ones and I dont know where to put my stops. I need to put stops.

Any help will be great..thanks

put your stop with standard depend on your risk reward ratio..if ur risk reward ratio 1:2 mean for your target TP 40 your SL should be 20, or u also can put your SL depend on support and resistance line..just my 2 cents..