.When is the ideal time to open trades?FTT in Olymp trade

.When is the ideal time to open trades? FTT in Olymp trade.


I would like you to teach me about when I can open trades?
You can give me books, websites, videos … etc.
Short term deals. Approximately 5 to 30 minutes.
Although I open it when the indicator RSI reaches the red or green line and yet I lose trades