Depends on what she is trying to accomplish. Lets face it, ugly extremely ugly guys generally don't even like ugly or even average girls.
BUT I know of one very effective way that even an extremely ugly girl can become attractive to guys they desire. The key is to be as feminine as possible. Be mild mannered, agreeable, uplifting, and playful. Wear dresses and skirts as much as possible. Grow your hair long and wear it down as much as possible.
Looks are very important to guys and good looking girls definitely have an advantage, but femininity is even more important than looks. Things like personality and common interests don't really matter as much as those two things.
Yes, by stop asking this question. By asking the question itself, it shows that you look down on yourself in that aspect. Superficiality is not everything, being confident and having a great personality with good intentions is what counts. Overall, a firm standing with moral confidence, don't let others know you think that way about yourself, cause it kills away the confidence.
I don't think an ugly girl will have trouble getting an ugly guy, especially if the guy is even uglier than she is. As long as she has a reasonably nice personality.