Case Interview @ Capital One for Finance Rotation Program

I got an email Wednesday from recruiter asking to setup first round interview which is a case interview. When given days and times to have my interview the options were a week away on the following Thursday. Eager to jump on the opportunity and not lose my chance I set it. I’ve never done a case interview before and my prep started that Wednesday afternoon and it’s been a challenge to say the least trying to prepare for it. Should I attempt to reschedule or is there any guides to help me improve to be ready by next week? I have been watching every video I can find, reading case and point as well as victor cheng books; also a good friend of mine that works at Deloitte sent me a bunch of casing study material that was passed to him that I have been reading through. I want to do well and be prepared and I’m just not sure what to do.