How do I get better self-confidence?

Everyone tells me I'm gorgeous and that I look like a barbie doll but when I look at myself, I don't see what everyone sees. Sometimes (rarely) I will actually look at myself and I do look pretty. I have never been abused. I have a wonderful mother and step-dad, wonderfully blessed sister and brother but I feel like I'm just... Ughh. How do I feel better about myself?