Missing to do the right thing

Again I don't want to take small profit. Probably because I have such small amount in my account that anything monetary is meaningless. Ugly fact is that this is also undisciplined, I don't listen to myself and don't take 1R or 2R in this case. Maybe I just don't want to miss out on a high of a runner trade. So, I'm trading for an adrenaline high. 
-7 pips