Your aim and goal should be primarily focused on NEET itself because you get admission to future medical courses through NEET exam only. And for the boards criteria you obviously need to score a minimum of 50% in PCB and need to pass in each individually as well. So for that, I'll tell you if you are going well with NEET, 50% can be easily achieved through same studies. And when boards exam come near, ie the last 1 month, that time you can shift your little focus back to boards and trust me, then scoring 80-90% becomes easy. I had followed this trick and I was satisfied since I was able to score well in my entrance exam as well and alongside I got 82.15% in boards too. Chemistry and Biology is more of theory itself so neet and boards is almost same. At both the places, you've to byheart things. And for physics, I can understand both are different but it's ok. Your concepts are clear for neet, so you will be able to answer theoretical and fill ups questions and solving numericals is also easy for neet guys since we solve more of mcqs. For derivations, you'll need to sit and practice for boards but this you can do in the month of February itself.

Best wishes. Thank-you.