Hi

See, syllabus of your class 12th is in NEET, which will also be part of your board exams.

So when you are doing your class 12th subjects, do it for both NEET and boards

Divide 6 months into slots - based upon months approaching towards board exam.

For board exam, one month will be enough to practice writing. Meanwhile you can give 2-3 hours to your class 11th topics for NEET in starting months of these 6 months.

So that you don't loose your grip over class 11th subjects too.

Start looking at previous year questions to get an idea about how much effort you have to put in order to get a government MBBS seat

Best of luck