Looming Eviction

Hi I’ve never done this before but I am desperate. I am £2000 in arrears with my rent because of a mixup with my housing benefit. I have an eviction date for 16/05/2018. Please help us or me and my disabled daughter will be homeless. I’ve lived in my house for 33 years and I was bo inh neighbouring street where my mum lived for 78 years. I have recently got a part time job and have come off benefits but I desperately need to clear my rent arrears. Both myself and my daughter have mental health issues and this is too much to cope with. Please help us