CPA becoming a CFP

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Hi there! I'm a CPA doing the accelerated path to become a CFP. I'm currently taking FP517 Financial Plan Development Course, and I'm struggling with it since I didn't take the previous financial planning courses. Are there any other CPAs out there who did the accelerated path and have recommendations on how to get caught up on the knowledge needed for FP517? Any book recommendations or anything like that? Thanks!