Hi,

CA course or Chartered accountant course can be persued after class 12.

The eligibility to apply for this course after class 12 is - a candidate should pass the  class 12th from a recognized board.

The course is completed in three stages -

1. Foundation course
2. Intermediate course
3. Final course

According to my opinion you should focus on your class 12th board studies. After passing the class 12th enroll for the C.A foundation course and do a dedicated preparation for clearing all the stages.

Hope you find this helpful