Ok i no i asked this b4 but no1 answered. could you help me please?!?

theres this guy i like and we've bn friends since the 3rd grd (im n 8th) well idk if i should tell him cuz i dont want make our friendship akward but i badly want 2 ask him out but im not allowed 2 date. so what should i do im so confused. Please please help me.