Pikaqiu

I am a second year graduate student, studying at Peking University in China, currently preparing to apply for a phd program in the U.S. The schools I want to go to at the moment are Harvard and Johns Hopkins, if you have any experience in this area please feel free to share it with me, the language learning and school application experience or the do's and dont's of living in a foreign country as well as the schools I would like to apply to thank you very much.
About my hobbies.
I like boxing, table tennis, basketball, soccer, running, badminton, tennis, rollerblading, hiking, cycling, squash and other sports.
My favorite animal is a cat, I dream that I can have a cute kitten in the future when I am financially independent, that kind of life is happy enough for me.
I like movies and TV shows. I like comic book movies very much. Captain America and Iron Man are my two favorite characters. Of course, I also like Spider-Man very much. I also like quality TV shows, I have a soft spot for actors who are very good and dedicated, and I hope you can recommend me some suspenseful and special TV shows (not cheesy plots).
I have a strong interest in calligraphy and painting, and sometimes I exchange Go and Chess with others. I love reading and writing. My favorite authors are Keigo Higashino from Japan and Yu Hua from China. I really like speculative fiction and literary genres.
I am not good at music, but I like listening to music very much. Sometimes I listen to funk and rock music, and sometimes I like quiet piano music. The singer and the style of the song are not my main concern, I'm more concerned with the beauty of the song itself.
My favorite subjects are math and history, but my English is not very good. I would like to learn English from my friends all over the world.
Recently I've been obsessed with dressing, I want to find my own style, I always feel I'm not "fashionable" enough, and I always have body anxiety, I always feel my legs are thick and fat (height 170cm, weight 56kg), and I feel I'm not in good shape, how can I accept myself? How can I accept myself and improve my self-confidence?
Also, I've been learning some musical instruments recently to improve my literacy, I'm learning the erhu, a traditional Chinese stringed instrument, do you know anything about it? The sound of erhu is almost the same as the human voice, with singing and telling. Famous erhu songs include "Two Fountains Reflecting the Moon", "Good Night", "Listen to the Pines", "Horse Racing", "Grapes are Ripe" and so on.
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Thank you very much Postcrossing for giving me the opportunity to communicate with friends from all over the world. I would very much like to receive your well-designed postcards to bring a different expectation to my dull life and to expose me to the excellent traditional culture and the wonderful friends around the world. Thank you very much!