Emotionally Burnt-out

After 15 years of marriage, my spouse was diagnosed recently with ADD and we have just started reading Melissa's book. However, in stead of feeling relieved, I'm absolutely emotionally burnt-out and now, when seemingly we should have hope for a brighter future, I'm despairing more than ever, feeling, I have no energy or will to 'fix' this marriage, I'm done in and just want out, I'm so much happier and at peace when he's not around...what should I do? How can I motivate myself? It doesn't help that in the last year when I have sought counselling for myself, I have had too very bad experiences with two different counsellors and I feel there is no help for me...because of all the mess and emotional abuse, I have ended up with an emotional affair but in stead of counsellors helping me, I felt judged and blamed and told to get my act together when I feel so broken and abused...