You are absolutely dear ... this is very difficult at the beginning. Especially it's just a feeling,
when you lose you feeling pressurized and losing seemingly irreversible. That's mainly
most beginners consider it enough to release a few pips no matter how strong the trend is. Remember
it is almost a sin to let the market go with you just chipping off a mediocre slice. At some point
you will need all the pips you give up and you will fail as a trader at that time.