The most of the students believe that without tuition; they can't crack CA exams.
The reason being they have habit of tuitions since beginning. In tuition classes; more home work is given to the students and they either copy it from the class or if not attended on particular days; copy it from other students. Hence no learning at all about the subject.
Many students try to search hard which coaching class is the best. These students don't open study materials and books for 6 months; it is my experience.
From your words it is clear you are also one of them. Still approx four months are there to December. So practically you have approx 7.5 months.
Is anybody required to explain further what you should do ?