Boards score is important too so I would suggest you to focus on your Boards first as they will be coming first.
Prepare a timetable in such a way that equal importance is given to every subject. Revise every chapter. Set targets for example :- Target for Monday is to complete 3 chapters from each subject. Now revising 3 chapters won't take much time. After Boards you can solve multiple choice questions of each subject everyday . If you have already prepared notes well and good, if not then you can make notes of formulas which are helpful for revising before exams.
Solve previous year questions . Also refer previous year questions of Boards.
If you still have any queries feel free to ask in the comment section down below.
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