First of all never keep that in mind that you have reservations. That will lead to lesser efforts. 

Now,

Physics- Practice MCQs as many as possible. Solve previous year papers and do mock tests. Try practising JEE Main level sums because physics in NEET is getting tougher

Chem- Inorganic- NCERT

Organic- Teacher notes and practice papers( Subject being vast)

Physical- MCQs from JEE Main level