See first of all DO NEVER THINK OF DROP BEFORE JEE A , I repeat never ever think of it !!!
It is like losing half of the battle before you actually started
That simple - looking thought will destroy your exams ...Cause we are master procrastinators
What happens is you think that we have one - year ...will do it easily ... and this deproves your overall performance ...And believe me no matter how much you believe that you won't get affected by just a thought ...It will affect your scores ( am speaking from my own experience )
I know it is difficult but try to keep your focus on the upcoming exams.
I actually had the same thought around 15-20 days before JEE-A and it ruined me! I realised how bad it was ... I messed up in Paper 2 badly due to which I am here again giving this JEE