Is it normal to always be the same? is it bad?

I feel I know who I am. I'm still learning but I know stuff about myself. I just don't know where I fit in. Not saying I'm trying to fit in but I wonder if I'm just too content. I'm open to alot. I'll party, go to concerts, try different foods, travel (with friends), hang out, do whatever. I have personality and I'm sociable but I always find myself around people that want something else. I'm usually content with who I am. I make friends but I don't keep them because of that. I can have new expierences, meet new people, and learn more but I never drastically change. That stuff just becomes apart of who I already was. And I use it to my convenience. Everybody else just becomes their environment. They can have another friend of theirs around, and forget about me. I can have another friend of mine around, and I can manage to keep both people from feeling left out. At times I feel like I am who I was a kid but more aware. I don't know how to be anything else.