being invited to places

i am (15m) and literally it feels like I’m friends with them in school but I never really get invited to a group hangout. I don’t know if its my looks or my personality, but It feels like im trying to make friends with everyone and that prevents me from getting closer to people in means like hanging out together. Also it seems like whenever I do try and make the commitment to be better friends, I end up losing interest and wanting the friendship to end. Should I just try to focus on myself or should I just try harder to make friends. It is middle school but it doesn’t feel right to have no action outside of school when it seems like kids my age are hanging out almost everyday.