What is the sign of mature trading?
I think the biggest sign of mature trading is that you can accept your losses calmly. This sounds simple, but it is actually the most difficult part.
You can always strictly stop loss, and never take chances, because you never know how much money you can make, but you can decide how much money you lose.
If you are not comfortable with your current position, don't hesitate to reduce or close it until you find your comfort zone, because if you want to trade for a long time, comfort is the key.
In addition, don't pay too much attention to profit, because the more you care about something, the easier it may be to lose something.
All you have to do is stick to the rules, do a good job of risk control, and keep trading for a long time to truly become a mature trader.