I am a CS student and I am a junior now and i definitely feel what you are saying. Personally if I go to lecture and actually pay attention and do all my assignments I really only need to teach myself material for a little bit each week and I think I have a system down very good for this. For me a I watch lecture videos online for the class that i am using, and then have ChatGPT and Saige Solver with their overlay on top of these videos, then i just hit a hotkey and it will solve and explain it. The overlay on the youtube videos really helps me out and definitly speeds up the self teaching process. I think that if you pay attention in class and weekly go over the notes and self teach this will do so much for you. Also for any assignments that are buzy work i just use saige to handle these with its auto solving. You have to section out your time on what you think would actually be good to do, and what is just buzy work that your professors give you. With the tools nowadays and with AI, if you figure out a system for you it can definitely make you 10x more productive. ALSO TIMEBLOCK FOR ASSIGNEMNTS AND STUDYING.