I never understand why people think schoolwork is hard. I have never in my life found it hard or too much to keep up with. It's a standard necessity. Just...do it. As long as you understand the material (which honestly you should if you pay attention, don't procrastinate, attend, sort your priorities and revise sufficiently), I don't see why anything is difficult. The only time it would be hard is if you have to be in two places at once or something like a messed up schedule which certainly would be sorted out. I think in all my life I only met one person who had to leave early to get to another class, but that was Uni. and she was just tryna graduate.