I'm going to study in New York State, and my mother can't help but go with me. Just in case, I'd like to ask how to buy medical insurance.

Hello ~ ~ Hi! You can marry him in the United States through a tourist visa (you can get married in the United States at your age) and then change to F2 status, but you should pay attention to the explanation of motivation when applying for a tourist visa. You can also wait 1 year. When your boyfriend turns 22, he can go back to China and marry you, and then you can apply for an F2 visa to live with him in the United States.