Why is cs70 this hard?????????????

Literally, I've been putting in a lot of effort to understand the material for this class. I've gone through notes again and again, watched lectures by both Rao and Professor Umesh Vazirani, attended lectures in person still, and even joined a study group and have study partners. However, wtf is this class???? i went to the OH and still don't quite understand how to do most of the problems on homework. It feels like this class is eating my soul. What's the point to study for something that I can't even understand.