Hey guys is something wrong me? am i still imature?

Ok I'm a 17 year old guy in 11th grade. I seem to have a behavior problem. Not bad but just kinda weird for my age. I like causing disturbances for some reason. Like last time in school before the break me and a friend up went up stairs were the other kids were taken the exams, and we kicked some doors and ran. And today I had banged on a cl door 3 times with a friend and we ran off, it caused a big disturbance I heard the kids in the room before we ran. I just have a thing for messing with people, not like a bully but stuff like throwing rocks at houses and cars or messing up property a little bit. Anything really along as it won't kill anyone or really hurt anyone. I'm not a clown in cl, and if some one wants a serious or mature convo I can be mature. I also have a laughing problem like when the teachers screaming at us it funny. Or if something really big falls over its funny. Sometimes if I drive I Sri e really fast on purpose cause I think its funny of peoples reaction, especially the ones that's in the car with me. So am I normal or do I need help? I'm still imature? I'm not like it all the time, like if my parents take me out in public I don't show out. I do have ADD that may be the problem? Thanks