Urgent: Can't open any Windows

I don't know if this is the right place to post this, I don't know how this site works really, but I'm desperate and out of solutions to try.

The amount of problems I've had with this program in the couple weeks since I purchased it has been absolutely horrendous, but for the most part I've just bit my tongue and tried to deal with the constant freezes, crashes, lagging and so on. Now, not only has my video file probably been corrupted this morning and unable to open out of no where, with seemingly no way for me to retrieve it, It seems I can no longer can start a new one.

I can't open any of the windows under the windows tab. When I click on timeline, tools, properties, ANYTHING, nothing happens. Well, that's not quite true. the libraries, and the edit bar work, they will turn on and off fine. None of the other ones do anything. I tried uninstalling and reinstalling the program, and it didn't change any of my problems.

My two minute animation final is due tomorrow and I don't know what to do anymore. Does anyone have any idea of what I can do to open these windows so I can try to put my movie back together?