Dont know what to do??

tODAY IS SATURDAY AND MY BEST FRIEND AND I ARE HAVING A BIRTHDAY PARTY. I was not told when to go or what i needed to bring. I also told her i would help her with her room that her and her boyfriend where fixing up... but she never called me when she said she would... Then i called her today and asked her when i should come over and she said she didnt know but would call me and she would have Laura come and get me. She never called so about an hour afgter that i called her and she said that she had called and told everyone to come at 8 instead of 7! I never recieved a phone call... i feel like i am only invited because they feel sorry for me that i dont hang out with other people instyead of them.. i feel like i try all the time but they dont try at all.. i am so tired of trying to be friends with people and no one trying to keep friendships working.. maybe i just try to keep in touch with people who dont care for me.. I just want to find someone who truely cares about me and calls me just to talk or actually wants to hang.. maybe i come off as controlling or obssesive but that is not my intensions. I mean i just moved to a new place where everyone has known each other since like kindergarden and i am not one of those. I just feel like no matter where i go i will never be accepted because i have never bel;onged to one place for longer than 5 years!! I am just so tired of trying... but i got to go so i will talk to you all later