you can try this sir :
- when to enter and exit a position ? this decision must be based on price, not on your feelings or fundamentals : there are 3 prices in a trading plan the entry price, your stop loss, your take profit, all this 3 levels are calculated before you enter the trade by price not by your emotions.
- understand the market, is it trending or chopping.
- determine the risks
and this are just few important and simple keys