Yes NEET can be cleared in 5 months , but you have to score 500–550 marks to get some of the good colleges .
Just concentrate on biology read each and every line from NCERT because as you know it carries 50% marks . Be crystal clear in chapters that carry maximum weightage. Solve 10–15 previous year question papers.
If your concepts in physics are clear then it will easy for you to score in physics. Make a time table that will be comfortable to you. Completely stay focused on your studies , stay away from any disturbances. And remember that nothing is impossible. Stay focused and study well.
Thank you !!