been alone my whole life

Ra

So I am 15 and in high school and have never dated anyone. I don't know what it is, if I am not attractive or I am annoying, but it makes me sad because all of my friends have dated someone or are dating someone and it just makes me feel really self conscious. I feel like I am just not good enough for anyone. That is what I look like, maybe it is because I am not attractive enough for anyone.