Is it normal that i feel i have it worse because i'm want to drop my subjects?

I plan on dropping some subjects and it has been like this for quite a while but i can't bring myself to do it coz i random situations come to my mind which make me feel very anxious and scared about dropping like, the dean would ask reasons to drop and my reason would be invalid and some other stuff and this kind of thinking has prevented me from taking action. how do i deal with these anxiety? i know all i have to do is get a dropping permit but i just can't get myself to do it.. i know many of you will think i am a joke but for those few who understand, please help..