Keeping our home secure

It's with a heavy heart that I write this. After so many years of breaking my back to make sure I give my kids the best upbringing, working and studying to better myself ,I've now hit a hurdle I'm struggling to jump alone.

After 9 years in the same home, paying my rent, paying my way, my landlord decided it was time for him to sell the house, so we had to move. I managed to work hard enough to get a deposit together for a new place, got the children into new schools and things looked good for our future.
Unfortunately though, now I have had to quit my job as a nursery nurse, and take on a lunchtime assistant role, as I can't afford the childcare and this means I now have to apply for help to pay my rent but it can take upto 6 weeks for the claim to be completely processed, but my rent is due in 3 weeks. I have been able ro afford my rent since we moved in December, but this month I can't afford it.
I have spent my entire life looking after myself, I have had a tough life, with a traumatic past (which I won't go into detal about as it's not the reason for my troubles) but when I became a mum I made it my goal to support them however I could but now I can't.
Ijust need a little help, getting through the next 6 weeks while my claim is assessed and processed, I just need to pay my rent so I can sleep easy at night.