@TheDivaGirl,
Are you evaluating yourself, or have family members and friends told you that?
There's an old saying, beauty is only skin deep, but what lasts is the person's personality. We all get old and wrinkly.
It's true that good looking people have a legs up, because it's been proven by studies that they get better grades even though they don't perform better, and are served first by service people.
It's also true that physical attraction is important for the first intro, but in a relationship, it's the person's character that counts.