I actively manage my trades. Use a dynamic TP based on my system instead of a fixed TP. If the market goes against a trade, I exit. Some trades last minutes, others hours. Am I a scalper? One thing is certain though, the longer a trade, the higher the likelihood that it will be impacted by an unpredictable, random event. This event can be either positive or negative on your trade.
Audentes Fortuna Juvat