I just wanted to say.... I've been there - DO NOT LEAVE THE PROPERTY - sorry for caps. In the councils eyes if you do you will be making yourself deliberately homeless.
These things can take months, use your time to get anything you don't need daily into storage if you can. If not get everything boxed up anyway.
I left my home of 10 years with my 2 children, leaving lots behind because I didn't have any more storage space. I posted the keys through the letterbox the day before the bailiffs were due and off we went. No idea where it would be that we were going.
Only by following the councils rules will you get to the top of the list - this in itself could take weeks or months, but they have a duty to house you in the mean time.
I've been in my council house over 2 years now, and it still breaks my heart to think of what was our home of 10 years. But we got there, kids had to change schools, massive upheaval, the stress of not even knowing what area you will end up in...
Sending you lots of love and support. You will get through it, and you will be in a better, more secure place - you can do this. Keep on top of all the paperwork, as soon as the section 21 expires, get down to the council, as soon as bailiff dates are arranged get down to the council. Just do everything they tell you.
Huge hugs 