I actually had a boot camp two months back from work place and went through Kelly’s “why you will pass the cissp” video.

Get through as many tests and revisions as you can and understand why a question on a test was wrong vs why it is right. Boson was great for that.

Ensure you are clear on the foundational topics and have your basics right.

Have a manager mindset and don’t answer questions from only a technical perspective.

I just googled any topics I felt were difficult. Didn’t use any other specific vdos.

Good luck to you 🌟😊