Hi bartos - I know what you mean about work, I've been afraid of making a mistake while sleep deprived and I have felt my brain has not been at full capacity!
Our sleep consultant did say she uses the pick up put down method in babies up to around 8-10 months (as I asked if we would use this method and she said no as too stimulating for babies of my DS' age). Then after that our method. She does not recommend controlled crying which is good as I definitely couldn't do it. She actually said in her experience other methods have better long term success, plus are less stressful.
My husband was involved, although consultant recommended we split the bedtime and night wakings consistently at first (so I did all bedtime for a while; we had set feed times overnight at first which we then dropped). Sometimes I think DS actually settles better for DH in the night.
You have nothing to be ashamed of, although I can relate as I was the same. We'd been doing ok, then DS got four molars in a month and we'd regressed to probably the worst his sleep ever was. I was almost embarrassed to tell anyone about it.
I totally get the stress. A couple of weeks ago another mum at swimming told me how her son (similar age to mine) slept 11 hours overnight without waking. It made me want to cry as I realised how much easier my life would be if that was the case- work, relationship, ability to parent, everything! I also found the bedtime battles almost worse than the night wakings by the end of it as I hated having no evening.
It will get better and you will get through this. If you want any further info feel free to PM me. I have to say I love your sense of humour, your posts are so funny and cheered me up many a time when I was having a bad day, so thank you 