Wow. I'm so sorry. Glad in a way, because it was obviously a nightmare place to work, but the way they treated you...... No offence to anyone, but American employers really seem to treat people like absolute crap compared to the UK and Europe.
I will post more later, when it's not the middle of the night

and try and give you some ideas about working for yourself.
And BTW I hope your lawyer gets you a HUGE payout