Student Exchange Programs

I’m a hs freshman and my gpa is 3.8 but I’m not taking any honors classes. I do live in Michigan so that should help. I was in a club but dropped out and im doing lacrosse in spring. Also I’m going to be a foreign exchange student next year and I heard colleges like that but idk. What are my chances of getting into u of m and what can I do to increase my chances?? I don’t wanna be one of those people who freaks out and worries about whether they will get in or not.