Question about AP Computer Science exam?

I took the class this year and made an A. However, I didn’t take the exam because I wanted to focus on APWH and APHG. I have all my notes, the Barron’s review, and the textbook. Would it be reasonable to continue studying off of those things throughout this coming year, as well as practicing FRQs, and take the exam next year for a score of 4/5?

Thanks so much!