AWS Associate certifications level study plan

Hello everyone,
I just passed the AWS Cloud Practitioner using the Exam-Pro video (great resource) and now want to proceed to the Associate level certification.
Exam-pro suggests studying all three certifications at once so that you can finish in 1.5 months instead of three months (one for each). Additionally, there is a boot camp that appears to be particularly practical.

Have anyone had experience studying this way? If so, how do you plan your study?

If so, do you participate in the boot camp before studying for the Associate-level certification?