What do you think about this?

I'm almost 15and I'm going into highschool. I've never had a boyfriend before in my life and I know I'm fairly pretty and I just made the compettion cheer squad for my highschool. I've also never had a guy that had a crush on me that I know of, I bathe I wear deodorant I know I don't smell bad and I don't think I'm mean so I don't know why guys don't ask me out, my friend rarely showers she went a month without washing her hair the only reason she doesn't smell awful is cuz she loads on the perfume, she only wears sweatpants and baggy t-shirts an wears her hair in a greasy bun everyday but nearly every guy she talks to always has the crush on her not me I don't think she's doing anything slutty so why do you think alot of guys like her and think she's so pretty. Any advice to how I could get guys to like me? Also idk if this could be why guys don't ask me out but I'm kinda short I'm like 5 feet tall, could this be why guys don't ask me out?