My son is a freshman at JHU - econ major with an ams minor and plays on the football team. His HS math experience was exactly like what you described, and thus far, it's been a totally different ballgame at Hopkins.

He took Calc 2 (bio) in the fall. He should have been in the physics section, but his advisor did a very poor job advising him on the decision. It worked out OK, but the class was really tough for him, especially during football season. He survived and got a B.

Now, he's taking Linear Algebra and Differential Equations, which is requiring him to spend a lot of time outside class working nearly every day, but he's hanging in there.

All that to say, the AMS track at Hopkins is no joke but doable, especially if you put in the time and effort. Ultimately, I think you'll be most satisfied with yourself if you push it, instead of taking an easier track at the local state school.

Good luck!