I was coming on here to confess to an eating binge disaster. Will come back to that. 
Slim - I read your post and wanted to offer you some support. I'm not on antidepressants and I'm not vegetarian, but I'm also not mad keen on eggs and am generally very fussy - don't really like vegetables, most of my pre-BSD diet was pasta/rice/potatoes/cakes/chocolate... Anyway, I was 12 stone and I'm 5 ft 2. Heaviest I've ever been and I felt so miserable. I read the BSD book after Christmas and DH and I both decided to give it a go. I was worried about my health, my dad is type 2 diabetic etc. You get the picture. The way I dealt with it was to tell myself this was a medical treatment. For 8 weeks, food wasn't food it was medicine to make me well again.
I did manage to stick to it - 12 weeks in total in the end and now I've been maintaining/slowly losing for another 6-8 weeks. I'm now 9 stone 7 and I've lost 11 inches off my waist. It wasn't always easy, but it wasn't impossible either, because I had the motivation and then the results come so fast that it keeps you going.
This thread is superhelpful too. Keep posting and keep going. It was so worth it.
Oh, and yes, I was very strict yesterday, was starving today, and managed to eat a whole bag of pretzels. Felt guilty, checked the calories - 750 calories. Its my worst eating disaster since January and I feel really angry with myself. They weren't worth it at all and I really wish I could un-eat them now! Fridays seem to be a bad day for me.