Homeless and need help

I'm 32 years old, female and I live on the streets of London. I became homeless 2yrs ago and have been trying to make it through each day since. I am not addicted to drugs, gambling or alcohol and never have been. I want to pay for a hostel and food, for at least a month so I can be steady and look for work without worrying about where I'm going to sleep or where my next meal is coming from. Please help. Thank you.