How do I stop being weird? (long description)?

Most of my friends know me as a cheerful, always hyper on sugar, awkward and slightly annoying airhead kind of girl. Its just how I act naturally. However I feel like I think too much, and I always have this slight attraction to the unknown; questioning the theory of ghosts and trying out stuff like Astral Projection or reading about rituals that I never do. I also feel spiritually lost - I keep jumping around different religions (Christianity,Buddhism, Wicca, even touched a bit on Satanism once) yet don't have enough commitment to the religion.
Of course it's all find and dandy, and I keep this a secret from my friends; but nowadays I have this occasional outbreaks where I reveal of this kind of things or get depressed very fast. Apparently I also have a weird sense of 'morals', because when I tell my views on certain issues (like capital punishment or abortion or incest) to my friends they give me this 'look' - like a "that doesn't make sense! but its wrong" look... but it somehow makes perfect sense to me. I believe it gives people the impression that I consider life as 'precious', but I do. I do think I have a lot of morbid thoughts - however its more like a twisted sense of view instead of a suicidal emo kind of view because I think the world is beautiful - in its own f*cked up way, its very beautiful that I don't want to die before I see the whole lot. Then I would start questioning why I don't want to die (Is it because of that reason or is it because of fear of the unknown?) then I would imagine scenarios if I were to die (not as a 'I hate life and I wanna die' but more of a 'I'm curious what death would be like')and... yes I'm rambling._.

Its -for a lack of better word- weird. Despite having my friends, I feel a bit alienated from them because its hard for them to relate to my views and perceptions alone. So when around people in general I revert naturally to my too-much-sugar personality - which I think they find exhausting, but I don't know how else to act. When I'm by myself of the bus or walking on the street or whatever, my eyes would often stray to study various sort of people and study their interactions and I would try apply it when I'm around people and somehow ALWAYS fail and revert back to my air-headed disposition cause I DON'T KNOW what else to do. I've always wanted to fit it (not be 'unique' as some people put it - it's hindering me) with the crowd, and from young I had been naturally awkward (I had been in denial until I was 12 a girl went up to me and blurted out "you're weird" that I started to accept my weird-ness).

Is there a 'cure' for something like this? I just want to be grounded enough and to adapt to the environment.