if u sold spus today at 61 qnd they got to 65 and they looked toppy, ask yourself if you were flat would you buy them here ,if not ,you don't, taking heat is easier if you have confidence in your ability to make money because you know you can get it back,so if you are having trouble with heat,try harder and learn faster and become better at trading, and the heat will disipate
By the time of my third major drawdown, it wasn't quite as hot anymore because I realized the market is a living breathing thing and you have choices - re-evaluate the trade and exit if the initial conditions have deteriorated significantly.