Fatbadmum - please change your name, im not sure how lardy your arse is (mine is pretty dammed lardy so i can say that) but i am pretty sure you aren't a bad mother.
Am wondering if you are me though :) I am in very similar situation and i get quite jealous of other mums who seem to have it so easy compared to me. Thing is, everyone has their cross to bear, we just don't show it. I often have to remind myself of that, not in a FFS woman get over yourself way, but just to remind myself that just because i have problems it doesn't mean im a failure.
I have come off citalopram this last year, went down relatively slowly - 20 - 10 -5 -5 every other day, still too fast and was at doctors last week, total meltdown, discussing other ADs, but not wanting to go back down that road because it does numb you. I might feel stressed and anxious just now, but at least im bloody feeling something!
I was discussing exercise with the doctor and saying i run like a mad thing at the moment, he said that will pretty much, if done regularly enough, have the same affect as the drugs in boosting the happy hormones as it were. Is there the opportunity for you to do maybe half an hours exercise a day - I don't exercise to lose weight (and im a BIG girl), i exercise because for that half hour im not thinking about Tax payments, debts, the fact i can't get a bloody job because ive been out of it too long, im thinking about how much it boody hurts
but it helps, my anxiety does go - i can feel it seep away.
Your depression seems to be returning etc, i think you need counselling so you can recognise yoru triggers - go and see your doctor, ask to be referred, ask for it to be urgent (there will be a LONG) waiting list.
In the meantime, welcome to mumsnet - do PLEASE avoid AIBU because people come to this part of the board for a bit of a fracas and as someone who has been flammed more than once, i can tell you it is not the place to be if you are feeling vulnerable. There is however support on this site, try posting in Chat or the Mental Health section, where there are lots of lovely ladies who have been through what you are going through and understand
Best wishes xxx