I've been feeling that i'm ugly for 2 years now? what can i do?

I'm nearly 15 and i've felt like i'm ugly for a couple of years now. Before that, i really didn't care about the way i looked but now i straighten my hair every morning and before i go out, i try and wear makeup but it doesn't suit my skin and i also feel fat cause i'm a bit curvy :( What can i do to that will make me feel better about how i look? Is there any good foundation, moisturiser , certain style of clothes, ANYTHING that will make me feel better about myself :( Also i have quite rough skin so if anyone knows any good moisturiser to stop my skin being so rough please tell me :)