Feeling hideous and fat next to beautiful and skinny friend. how do i stop feeling like this?

Count your blessings: Literally, count your blessings. You recognize her beauty but are not recognizing your own. What are some good things about you? What do you like about yourself? What unique skills do you possess? Do not compare yourself to others; you are unique and obviously a loyal and kind friend. Celebrate that and the good things you are.