I recently started taking math seriously and starting to really enjoy it at age 25. I can graduate with my math degree next spring but what I really want to do is go to graduate school for physics. I've been learning it on my own, making good progress. If I want to start with a Master's do I need to take a bunch of undergrad courses first? I don't want to take a bunch of courses with freshmen or sophomores at this point. I'm breezing through the basics and I want to take the physics GRE this fall. A good score on that + math degree should give me a chance at a Master's program?