Forgot to mention there is a personality test The Big 5 you can take online might help.
You mind given a clear way to help this thing? 'cause am not ready to quit trading no matter what.
My advice is to first find a quantifiable and statistical edge in your trading. Many people have negative emotions (fear) when entering a trade. In many cases that fear is likely warranted because their trading has a negative statistical edge - so over the long run they will lose money trading the way that they do. At the same time you can be 100% in control of your emotions, be the most confident person on Earth but if you have a negative expectancy then you will still lose money. So first, you must find a clear, quantifiable and repeatable trading edge that you will use. This is EXTREMELY hard!
Once you find a bona fide statistical edge then you will have more confidence but will still likely find it hard to deal with destructive emotions. Reading up on sports psychology could help. Meditation will also help as meditation can rewire your brain. In fact, meditation is the only way to actually rewire your brain. And you're likely going to need to do this to eventually become successful.