1. Trade without stop loss
2. Trade without well defined risk (potential loss per trade)
3. Trade because he is bored or just want to make "some" money. Every trade is part of a larger plan or a setup.
A trader will always have chanced in market, He should never show that much hurry that his capital will be in danger. Then without analysis trading is useless. Emotions should also avoided while trading they can be curious and passionate but should not be careless. A caring trader is a winner one day becuase he knows the ups and downs of market.
It is safe to act upon rules, because rules can escape them from bad times. A real trader never stops using stop loss he also have a target to make pips but in my view he should do more focus on risk management then gain from market. Any sudden jump is not a right way to get profits only their good work will be appriciated.
If you are a beginner, don't quit your job to become a full time trader rightaway. That's very risky if you don't have enough experience and can put pressure on you that will make it harder to control your emotions.
Also, don't let your emotions make decisions for you. Especially don't revenge trade. If you feel heated, take a few minutes to calm down,