I wrist aim and use 0.42 @ 1200DPI. I can’t use my arm that well due to a physical disability. I really want to get good at this game but most people tend to use low sens, is using a higher sens futile?

im a new player that sucks pretty hard not even lvl 20. for some reason i get matched against lvl 100+ pretty much every game and go double or tripple negative every game. i know level doesnt mean a lot but they have hundreds of hours more...