Why not try a modified juice fast, or even a full pure juice fast. I'm sure you've tried so many other things, what's one more? Give it two weeks and see if you can't take it to 3 weeks if you find you're doing well.
The juice fast will vigorously detox your system while giving you highly concentrated nutrients.
Think about it, research it. There are several blogs here on CZ that can offer an abundance of tips and encouragement. Google Juice Fast and hundreds of informative articles will pop up.
Whatever you decide to do, I wish you the best.
You are an extremely lovely and brave soul.