first of all i want to say that its your most critical time because of covid you can’t join any foundation courses. only you can do is online coaching and that’s not enough.
everyone have different environment at their home for studies.
you should do is to study most of the time you can. never ask that “how much time I should study to crack NEET “, ask for “how much time I will sleep to crack NEET”.
for the ideal situation:—