well my emotions are always controlled because I am not a quicktime seller so I invested for long time investment so whenever the market changes is not most of the time affected me because if you have invested long time you don't worry about that
That is one way of controlling roller coasters of crypt highs and lows
I think long term investors still should evaluate the market because if they sell high and then buy when the bull run ends and there is a correction, that might make more sense.