Best friends always leave me out. heart broken.?

I've actually totally been there and though I've always been strongwilled, I'm sorry to say that I changed for them. I became more shallow, fake, dramatic, and impulsive and crazy. I became the fun one. I also made a bunch of new friends. Soon enough that group that had been neglecting me couldn't get enough of me and neither could anyone else. I came to realize that people don't want a sensitive caring listenng "good" friend, they want a crazy fun one. Unfortunately in trying to get people to like me I became a person who has to be friends with everyone and make everyone happy. That in turn made me insecure and I'm now on the path to rediscover myself. On the plus side I became really popular. Was it worth it? Honestly I'm not sure. I don't think you should change yourself to fit in, but advising you against it would make me a hypocrite. Just make sure you stay secure with yourself because right now I loathe myself.