Why do 90% of traders not set stop-losses?

❌ Keeping trading notes is too cumbersome, and I can't remember why I placed the order during the review.
❌ Multiple exchange accounts, not knowing how large the overall risk exposure is
❌ Trading by gut feeling, not knowing whether to enter this position
✨ Three months ago, I was once again caught in a FOMO high, and during the review afterwards, I couldn't even clarify my logic at that time.
I usually write trading notes every day, but the manual synchronization of orders is too cumbersome.

I realized that the gap between retail investors and professional traders lies not only in market analysis skills but also in systematic decision-making, strict risk control, and even post-analysis.