To minimize losses (as much as possible) and understand strengths/weaknesses to gauge whether the trade is profitable or not before entering, use this concise practical framework:
1) Before entering: Is the trade 'worth it'?
a) Define the idea in one line
“I’m going long because the price broke resistance + high volume” or “I’m going short because the trend is bearish and broke support.”
b) 3 questions to uncover weaknesses