Hallo IOHW, thanks for posting on my miserable new thread - I've followed yours the last week & just wanted to add my support as it's such a huge decision to end a marriage, and however sure you are that it's right, you're only human to have regrets and misgivings.
Trouble is, most men are pretty toddler like inside. One of my flat mates years ago remained single because, she said, she wanted to bear children, not marry one! She never did find a adult and her only sorry was that it meant missing out on motherhood.
You seem to be getting plenty of sound survival advice from the others, and I can only agree with what they say. Once you get a job, you should get tax credits if your income is less than about £14000 (I just lost mine when Depressed Dp & I moved in together - we'd have been better off living apart for more reasons than one!) and you should get child tax credit whatever your salary. I work 3 days a week which is JUST enough to cover mortgage and bills etc, we won't be able to afford a holiday but we won't starve either. Ex-husband pays the bare minimum maintenance but it helps. Working part time also means you'll have time for your dd and most important, time for YOURSELF! And if you ever need a chat, we're all here.
Council property is almost impossible to find quickly - though I don't know where you live, you may be in a better area. In London, where I am, it's like gold dust. (I work for an ex-councillor/MP, so I see it all the time) but you can usually find something in the private sector and claim housing benefit towards the rent.
And ultimately, even if you have to suffer a drop in income and lifestyle, you will feel in control of your life at last, and that's SUCH a good feeling!