Someone help me plz!!!!!!!

I'm in một giây năm at high school in scotland and I have 1 to many crushes. But there is one guy I like in my maths class and he is super hot. It told him he will get used to me cause I'm a bit weird but clever. My Những người bạn think I should tell him but I worry if I ever go out with him its ma other crushes I'm worrying about.