First of all, you should face yourself. In fact, envy, jealousy and hatred are normal. People's psychology includes id, superego and ego, and this kind of jealousy is an externalization of id. If you want to resolve this kind of psychology, blindly suppressing it may be counterproductive. You should learn to appreciate yourself and even love yourself. Maybe you are not white enough and slim enough, but you can cultivate your academic temperament, not that you are full of poetry and books! There is also a bright and lovely smile and just the right dress. You know, girls with strong affinity will be more popular and luckier! Beautiful skins are the same, but interesting souls are unique. To relieve this kind of psychological anxiety and slowly liberate yourself from this kind of psychology. Maybe this psychological liberation will make you slim down slowly.