Greetings!

12 th board is being conducted in two phases this year i.e. 2021-2022 due to the pandemic. If you have secured 67% in mid exam then it is not difficult to improve your marks to 90% and above in three months. You must have a planned strategy to achieve your target. First ,make a timetable, give one day for each chapter of each subject. You must cover all concepts and back excercise question along with extra questions . Then in last days , you must attend mock paper and then again revisit entire syllabus once again and work on your mistakes.

Hope this will help you.

All the best.

Dear aspirant !

Hope you are doing great ! Yes definitely yes and yes just beleive in yourself and move forward , complete your syllabus as fast as possible and then do multiple revision ,also do not go with multiple books ,take a book only and read it multiple times also solve at least 10 previous questions papers and attempt mock test as many as possible in next three months , believe me it will boost your preparation and you will reach till 90 percent in your exam ,also avoid your distraction whether it is phone,any bad habit ,girl etc.

Hope it helps you !!

Thanking you