Ive been slapping myself

Recently I have found a new way to keep my expectations and ego as low as possible, whenever I do something stupid like mess up a social interaction, almost cry, think a girl is into me, inconvenience someone or see a cool dance and try it only to realize how hard I suck, anything like that I count it and when I get home I slap myself for everything on the tally or if im home on the spot, bigger mistakes warrant more slaps of course. I cant do too many because I live in an apartment and the neighbours might begin to wonder what im doing but anyway this has been a very good way of not getting my hopes up and staying humble. Does anyone else do this?