What do you think? can you guys please help me?

ok i think that i am pretty but i had someone tell me i was ugly the other day so i really need your opinions. ok sorry i cant get my picture to load so i will just tell you what i look like. i am 15, 5'1", blonde hair thats a little longer than shoulder length, blue eyes, clear skin, and i dont know why i this is making me so upset. normally if people say this stuff im just all confident and like well your just jealous or whatever but now that im thinking about it, i have had boyfriends but for like a year now i have been single. i am a very positive person, get A's a and B's in school, have a very preppy fashion sense and am spoiled but i try not to be bratty. sometimes it just happens. i model and play golf. i have a lot of friends. so one do you think i sound pretty and 2 why cant i get a boyfriend?