Dear Kristina,
I just can second what Kiron and Rami already mentioned.
First of al you need to figure out what makes most sense for you!
The Tip regarding the PMP Exam Simulator by Rami is just precious and goes in the right direction, also from my point of view.
However, if you still feel the need for a boot camp/online (self-learning) course (with the latter one, you might be able to focus on the videos/content that your results analysis marks as the fields that need improvement), please do not hesitate to reach out. I can provide a few reasonable resources, but unfortunately, it is not allowed to post other than PMI-related links in the forum.
In any case all the best for your exam re-taking. You can do it!
BR,
Markus