Two years is a long time to be having such a hard time. I second the idea of therapy if you can. I'm glad they've been supportive so far, but it must be frustrating to sense their disapproval or impatience towards you.

A couple of things I've tried:

* Doing a mini meditation on my own or listening to a guided meditation with earphones for a few minutes on break or lunch. Even just taking a few deep breaths can help to clear the fog.

* Talking to a friend at work, on the phone, or online and just getting what's in my head out to another person. Sometimes that's what I need, and nothing else will help.

* Taking a few minutes to write out the thoughts/feelings/impressions I'm having. Even "gah, I can't think." It helps focus or ground me.

Oh, speaking of grounding, have you checked out the "grounding techniques" thread? There's good stuff there. Take care, and enjoy your weekend.