Why is it so hard to focus during a class

It’s so hard to not just stare blankly into space during school. It’s so boring. But at least I don’t have any grades below a 90 which is the only thing I can really brag about to be honest haha. I’m not in any clubs and I don’t really do any extracurricular activities like sports or dance or anything. I’m not even taking any classes that I actually like (I hate the elective that I chose so much I wanna quit it but I can’t help). So there’s not much I have to brag about. Long story short I freaking hate school 🎀