I have proof that I am being sabotaged at work..what do I do!?!?

I am sorry to hear that. Some people are truly evil in this world and there is no dealing. I honestly suggest just trying to find something else immediately, i know that it is tough right now to get a job, but with your 12 years experience im sure you will get picked over other people. I would get out of that situation as quickly as i can but do it on good terms so if they have to call for a reference check that they don't talk badly about you.