How can I look prettier?

I'm in highschool and you know how random ppl come and say sumthing 2 u. well there was this group of guys i didnt know. one of them was like o my friend likes u. they were kidding and his friend was like ewww dont even go there. stupid ppl like that really lower my self esteem and they have no idea how much they hurt me to laugh a little. how do i make myself more attractive so ppl dnt treat me like that. Im 14 and I dnt think of myself as ugly but im not gorgeous either. i have gles n my eyes r really pretty theyre the only good thing bout me. i wear eyeliner and mascara and lipgloss occasionally. I dress very well and buy really nice clothes to make me look pretty. wat else can i possibly do?