What exactly do you mean by "better"?
If you mean what I suspect you mean, that is, more successful, then I'd have to say NO. Confidence comes from within. I've seen as many emotionally screwed up "pretty" people as I have "ugly" people. Pretty people might be even more screwed up socially if they have bought into the idea that they are supposed to be catered to because they are pretty. They might begin to place their worth in their looks. The truth is though, external beauty is of the level of the ego so never provides the kind of fulfillment you get from being a Truly beautiful human being. Then you will keep chasing "external prettiness" like a dog chasing tail. Which might explain why people who are into plastic surgery keep going back until they finally look like Joan Rivers, and still be convinced they are pretty.
I'd wager to say, you just feel that way cuz your excuse for your low self confidence is "ugliness", and who knows if you are really ugly or you just hallucinate that you are? Post a full picture, we'll tell you
Bottom line, you have chosen this crutch as your excuse as to why you will avoid putting yourself out there, composing and risking rejection ("I'm ugly already, so why try anyway? Look at all these cute successful people, such as Donald Trump")