Welcome, Wang Youtian!
Heritage and Family built the USA, dear young person. English, Irish, Dutch, German, Spanish, Italian, Poles, Czechs, Indians, Philippino, Chinese, Thai, Vietnamese, Japanese, Pacific Islanders and a hundred other nationalities are the warp and woof of the fabric that is America.
Your family name is easy (Wang) for an American to spell, pronounce and remember and Youtian is a charming "first" name also easy to pronounce and spell. When asked what your name means it has wonderful connotations.
Carry it proudly into the 21st Century.
wow
P.S. This Old Lady of Irish ancestry is delighted you are with us. We need the young of all nations.
Good luck in all your endeavours.
wow