Question, is anyone else at the stage where they'd rather skip class and do study alone? My spares are so productive but my revision classes are so slow paced I want to hit myself in the face repetitively 
Time for truancy ladies and gents.
I think we have this discussion every year on AN, but from another point of view, shouldn't hanging out with your friends be a very good reason to go to school? That was motivation enough for me to go to school. Even once we didn't have formal classes anymore, it was worth going in because there were a bunch of people that'd be studying; without having classes to attend, it was a fairly casual and reasonably relaxed atmosphere so it was good fun.
It might differ a bit school to school, but I'd assume for the majority of people you'd have known your friends for 6 years or so. Perhaps less than 6 if you've moved around schools a bit or if you have friends were the one that transferred to your school, or perhaps more than 6 if you've known some of your friends for longer than high school. There's probably a couple of teachers that you might have gotten to know pretty well too.
But at this period of the year, school is coming to an end. It's quite likely you won't see a lot of the people you've gotten to know regularly, if at all. People might head off to do their various things in life, go to different unis to you, move out of the area and so on. Even if you are going to the same uni and even the same course as a bunch of your friends, you might not be seeing them 5 days a week and in most classes like you do during school.
Exams might be the most important priority, but I think it's good to take advantage of the few weeks you do have left of school.