hi,

see neet is competitive exam, and preparation of this exam should be taken carefully, also you need to learn about time management, for which subject how much time you are going to spent, so right now you need to study 10-12 hr per day, along with your 12th exam studies and neet, follow mtg publications books for practicing questions, make a routine for subjects to study every day.

if you strictly follow the rules, you can definitely crack the exam.