yes, trading has many factors that can be do something with the psychological state of one's trader. If you know that you had a bad trade, you should accept it and move on. always pay attention to the small things and be cautious. having some education about tradings,strategies and patters of chart may give you less risk on trading.
Exactly always educate yourself everytime a new experience is a new lesson and skills when it is applied .Disappointment is normal sequence to a trader what is not normal quiting right after you lose .Well we can't blame them if they choose to quit by getting disappointed we have a choice to choose .Then if they're willing to be a trader they will continue whatever challenge is.