Nikolai... sorry, I didn't mean to dismiss your question as unimportant.
Is the identification or definition of your sexuality really important to you?
I wonder, have you ever heard of the "Kinsey Scale"? The Kinsey scale is a sort of sliding scale of human sexuality from 0 - 6. 0 representing exclusively heterosexual and 6 exclusively homosexual (With "X" representing Asexual.
I've reproduced some of the text from Wikipedia on the subject.
"Kinsey wrote:
“...Males do not represent two discrete populations, heterosexual and homosexual. The world is not to be divided into sheep and goats. It is a fundamental of taxonomy that nature rarely deals with discrete categories... The living world is a continuum in each and every one of its aspects.
While emphasizing the continuity of the gradations between exclusively heterosexual and exclusively homosexual histories, it has seemed desirable to develop some sort of classification which could be based on the relative amounts of heterosexual and homosexual experience or response in each history [...] An individual may be assigned a position on this scale, for each period in his life. [...] A seven-point scale comes nearer to showing the many gradations that actually exist." (Kinsey, et al. (1948). pp. 639, 656)
â€ÂToday, many sexologists see the Kinsey scale as relevant to sexual orientation but not comprehensive enough to cover all sexual identity issues. They suggest that sexual identity involves at least three different spectrums, sexual orientation being only one of them (two others being biological sex and gender identity)"
Kinsey scale - Wikipedia, the free encyclopedia
I remember when I was a similar age to your self and pondering on the same question. I didn't like the term "gay" and I've never been happy with "Homosexual" so I created my own, "Monosexual". It really didn't matter what I called my self because it didn't alter a thing. I also realised this and got on with the rest of my day, and indeed the rest of my life.
I think it's all part of our journey of self realisation. The emphasis being on "part"
Take a look at the link and see what you think.