Anyone taken 2 STEM classes over summer?

This summer I have to take Cal ll and a programming w/ C++ for beginners over summer (offered online).

It’s not ideal by any means, but I need to make it work and I need A’s in both classes.

Both classes are being offered for 8 weeks.

Has anybody been in a similar situation and succeeded?

I’m in a position where I have time to prepare so if anybody has taken these courses in general, it’d be helpful if you pointed out the most challenging topics so that I can review them.

I will not be working at all during those 8 weeks.

Any tips or HELPFUL ADVICE is appreciated.