hi,

see I dont think you will face much problem for syllabus since syllabus is quite same for state board and cbse, since cbse syllabus is followed for all entrance level exam students of cbse gets benefits.

make a routine for regular study of each of the subject, 10+2 course is one of the vital period of humans life cause based on your 12th result your future career will be decided.

hope you may understand.