Document everything. Write the entire history of what has happened.
But put most of your energy into going forward: your resume, networking. I recommend getting one of those books on the hidden job market, searching for jobs by avoiding the heavy competition on internet job boards by going directly to employer websites, etc.
Don’t get stuck thinking about how they treated you. Imagine you are turning off those thoughts by using a switch in your head. Onward and upward!
Many of us find it easier to work at home and there really are legitimate telecommuting and freelance jobs. Sometimes you have to start out in-house to get those. Hugs!