Seriously, you need to go talk to someone for the depression. If you were to be accepted into a lower ranked school you would still be able to reach those goals that you have set for yourself. Don't let a low GPA stop you from trying. I haven't started the application process yet, but I would think that at some point you would be able to explain your situation. My point is that this is a road block, and life is full of road blocks, you just can't let it stop you from trying anymore.