I'm sorry you've had such a shocker of a time lately. I also tend to binge eat when I'm down, and it's very hard because it perpetuates how you feel about yourself ie. crappy, and then you keep doing it and keep putting on weight.
I lost weight previously by seeing a lady who was a lifecoach/hypnotherapist because I knew the "how to eat" thing, what I couldn't get past was why I was overeating. I had several sessions with her and it was not cheap, but it really helped me sort my head out. I didn't "diet", just ate sensibly and had a piece of cake if I wanted one occasionally, and I lost about 8 kg over six months.
That was a few years ago. I put a bit back on when I spent a year overseas, and then last year - the year from hell!! I won't bore you with all the details, suffice it to say that two bereavements and the marriage breakdown and subsequent diagnosis of bipolar of a close family member made for an extremely stressful time.
I am now seeing a counsellor to help me work through some of the emotional stuff from last year, but I am NOT beating myself up about how much weight I put on last year, as it was almost inevitable. I am taking action now, and am doing Lite n Easy and exercise, and it's working!
Please be easy on yourself, sort your life out and don't let your current weight, weight gain or your eating cause additional stress in your life. I think your psychologist is on the right track - just take it one step at a time, and you'll definitely get there. Also, try pampering yourself with things other than food, like a bubble bath, manicure or a trip to the movies - getting relaxed and happy is a good place to start from when you're wanting to lose weight.