Finally, patience and emotional control are crucial, as markets can be highly volatile.
It's risky if want to control it humanly and my advice for you is, it's better if you can use automatic order like Stop loss order, Stop limit order.
These orders will be triggered at prices set up by you, even when you are sleeping or when you are unstable in emotion, psychology and don't know what to do.
Stop loss order, one of best weapons for you.