this is not exactly information you have provided already , there are so many traders in there who started trading as a part timer and still going good their performance.
according to my trading experience i think there is anyone can be a trader in trading demo or real . this is not a big deal , but the main deal how to survive successfully in there with great level of patience.
patience is really important for any kind of traders to survive here but as a beginner trader that is really difficult to maintain this good habit.
beginners always try to bring profit with no learning , and when they practically try to make sure that , fall a great trouble.
Emotions, overtrading, revenge trading were my biggest issues. Setting SL to BE too soon and exiting profits early. I am fighting these issues best with decreasing lot sizes...
this is really a fine line , to bring success from this trading place need a mental strength first of all. otherwise no way to survive successfully.