Damn fingers and fidgetting...

i can't get to have good score due to an incident i had when i was 8

i broke my right hand's smallest finger (not the thumb but the small one) and since then i can't fidgetting over it and it sometimes stops moving for a few seconds. this sucks...

so whenever i'm having a good score,my finger get stuck and/or fidgets which empeaches me to keep it and sometimes it even makes me fail the music.

so if anyone got an idea about how to avoid such a thing to happen when i play a stepfile,plz tell me here. i'm sick of failing.