Please I have friend problem.?

Help. Every year I have a new set of friends but I still try to keep in touch with my other friends. I've got friends from my previous school and from my cl in first year in second year high school and now a third year high school student with another set of friends. I always make time to chat with them but I think they feel like they're being neglected or something. Every year we're not clmates so of course I ended up making friends in my new cl since I don't want to be a loner or the odd one out. Everytime I go out in the corridor there's always someone I have to greet because she is my friend. I'm going crazy and I have to spend my recess in the clroom with my thrid year set of friends and lunch for my friends in high school, dismissal for 2nd year friends. and when i get home i chat with my friends from my previous school. I'm not saying having friends is unfortunate but now I'm in the journalism club with another set of friends. i can't my right arm to them and left arm to the other. TT^TT I love my friends and their important to me. i dont know what to do...