Leaving aside for a second the fact that you're probably don't look nearly as bad as you think you do, why do you think that your appearance dictates whether you're worthy of self love and acceptance.
Your appearance is not who you are, its a shell, a container, to hold the person you are inside. Hell, for most of human history people never got a good look at themselves. No mirrors, windows etc. Only way you were getting a look at yourself was in some particularly calm water. Those people still had a sense of self, a sense that they knew who they were.
So who are you? What things do you enjoy, what things make you sad. Are you kind, funny, intelligent, imaginative, determined? Is your idea of a perfect day being curled up under a blanket with a good book, or being the life and soul of the party.
You is a set of behaviours and emotions and qualities, not the meatbag holding it together. You don't enjoy the wine because the bottle looked pretty, you enjoy the flavours. You don't love a book because the cover looked stunning, you loved the story. You are the flavours, the story. Ignore the cover, learn to love the person instead.