The best advice I could give is to figure out why you're afraid to admit it? Is it family...friends...faith? At the end of the day there is beauty in everyone, allow yourself to see it, accept that you see it and embrace it. People will love you and you will love them just the same.
Also, I don't want to say that you aren't gay, but don't let it be because someone else has told you you are. I had friends through middle school and high school who told me I was gay, and I had a hard time for a while because I believed they had to be right (even though I'm really very straight with very little curiosity). And don't assume that you have to be one or the other. Sexuality is pretty fluid. You could easily like both guys and girls, or be very attracted to one and be attracted to one without really ever meeting anyone who you want to date. I would say don't try to put boundaries on your sexuality. Just figure out who you're attracted to and come to some logical AND emotional conclusions based on those attractions. :)
Ok, then, there's your answer :) I am just making sure because I would hate for anyone to go through what I went through, hope I didn't hurt your feelings or anything.
Also, in that case it seems like you are less confused by your sexuality than what to do with it, although that may be an oversimplification.
Even though it is, sexuality should not be defined with specific terms such as "gay" or "straight." It is the gray space between black and white. Constantly changing and adapting. Being confused is normal, just don't let this confusing distract you too much because it is mostly unimportant. Evaluate attraction based on individual people not by stereotyping a gender as a whole.
Oh, I know exactly how you feel. I was confused about my sexuality from the ages 11 to 16.
I should probably mention that I'm 16.
My best advice is: don't try and label yourself. That was my problem throughout middle and high school. I kept going "oh, well I'm bisexual. No, hold on, I'm pansexual. But wait, maybe I'm a lesbian." It was all quite confusing.
If you find a girl that you like, then good for you. Accept it. If you happen to find a guy that you like, well, that's good too. Don't try to force yourself into a category like "straight" or "gay," especially if you're only 15. You have your entire life to figure out who you are. You don't need to rush.
If you need to talk about anything, though, feel free to message me.
I'm in a similar boat i've been saying i'm bi but now i'm think about how the only men i've ever liked are fictional or David Tennant. so i think i'm actually lesbian because i fall for the fictional character's personalities, and we'll David Tennant is a time lord so i'm attracted to human females and time lords in general
i'm 15 too