1. Lack Of Proper Trading Education
2. No Risk Management
3. Lack Of Patience
4. Having that mindset that trading is an easy money generator.
5. They set up goals basing on others positive outcomes
6. Emotion
Lots of experience or things that you should face on first before for you to able to learn.
It will vary on each person because not all would have the same effort on learning things up.
Agree with those 3+3 points. Risk management is the key along with proper trading education. I see a lot of people look at the positive trades on Twitter and other social media and get enchanted with it and think they can replicate it without and formal training and management. They may get a few positive results initially but in the end it stops working and they start risking a lot more to get back into positives. In the end, either losing it all or just losing hope and blaming trading for it.