Default [Q] Galaxy s3 Sprint will not turn on

So at school today, I turned my phone off as class was starting, it was working perfectly. Afterwards, I tried turning it back on and it simply does not at all. I connected it to a charger, no buzzing or anything that usually happens. I removed the battery and put it back in, nothing. I used somebody else's battery, nothing again. There is no response whatsoever. FYI i am running stable version of cyanogenmod 10.1 (android 4.2). Anyone else with the same problem or know how to fix it cheaply??? Or am I screwed??