Welcome to Beyond Blue and well done for reaching out.
Personally I tend to think of sexuality as being a bit like a 'sliding scale' ...... or maybe even a 'spectrum' .... like as in, Autism is a spectrum and some people have very mild Autism, and others very severe and others are somewhere in between. And sexuality, to me, is a bit like that - it's like a scale where some people are totally Heterosexual, some are totally Homosexual, and others are perhaps somewhere in between.
If you were to ask me personally to 'label' my sexuality, I'd say that I am mostly hetero, with a pinch of bi thrown in for a touch of spice! I have mostly dated, and had serious relationships with men - I am female, by the way - and have had some brief sexual interactions with women also. I do experience feelings of attraction to both men and women, but like I said, most of my more serious relationships that have been longer term, have been with men.
Whatever your preference is, is your business completely. I am also not, and have not been the type of person to 'offer forward' a label, per say, for or about myself, but if asked directly, then yeah, I have no hesitation (with most people anyway) in stating what I did above: that I am 'Mostly hetero, with a pinch of bi."
Anyway, I don't know if that helps at all? I hope it does at least a little. In the meantime, enjoy the journey of discovery!
Take care. And feel free to come back here and talk more about it if you wish. xo