Here's my personal experience. I was out of status too. My fault, I worked more than 20 hr in the college. The whole scenario gets more messy. But I left within 5 months to Nepal.. Actually, I left US 2hr before my 5 months deadline expires.
Your situation is sounds little more complicated. I would NOT recommend you to leave states, cause your chances of coming back is almost nil, unless luck is on your side. You have passed the 5 months deadline.
I am not sure if the embassy in Nepal knows it or not, cause when I went to apply for Visa for my master's they never asked me about my violation or anything, and issued me visa within 5 minutes.
However in the port of entry, it shows in the system and I was called in for question by the immigration officer. I explained them my situation and in the system it showed that I did not over stayed. So they didn't had problem letting me in. In fact if I had overstayed even by 1 day, they could have send me back.
That's the reason I don;t recommend you to leave.
you can spend hours googling information and gets several opinion from people around. But I would strongly suggest get a hold of a good lawyer, if you are planning to go outside US.
Cause if you leave right now, you might have a 10 year ban on you to re-enter US.
Check options about finishing your studies in Canada or smthing. But then I'm not sure if you can make it to USA again or not.
Good luck!