Appearance doesn't define what kind of person you are, don't obsess over how you look because no matter what you do, there's always gonna be people judging you, so why waste your time trying to be perfect for everyone? Pretty isn't the same for everyone, you might have a big chest and think that people will like you because of that but that's isn't always true because there will be people who find a big chest unattractive, so what are you gonna do? Change yourself for one person? Remember, you are the only person that looks like you so cherish that!