Are you renting a sofa? 60 quid a month?
We bought sofas on 0% interest when we bought our house 2 years ago. They were a necessary purchase as we had no furniture at all.
You might want to look at how other posters have found furniture for very good deals when they had no furniture at all. Craigslist, Kijiji, freecycle, local Facebook places all have people looking to unload furniture for free, or for dirt cheap. It may be ugly, but if you don't have the money, it will tide you over until you do.
I was speaking with a newcomer to my city, and she snagged a couch, chairs, coffee table and a bookcase for like $400 + an uber ride because a person was expecting baby furniture to be delivered in two days. A couch isn't an item that you can't live without for a few weeks before you find the right opportunity.
My house has roughly this as far as furniture goes:
Couch inherited from my mom that she gave us when she sold her house. Originally from my grandpa, given to and not wanted by my mom (and who used selling her house as an excuse to dump it on us. I don't mind it. It's a decent couch.).
Fancy looking glass coffee table inherited from my last roommate situation. We split the cost back in 2013 but it was from a thrift store and I think no more than $20 for my portion.
New entertainment center TV stand thingy. $90 from Amazon. Had to put it together myself and it's really just cheap particle board crap, but it does the job and looks nice.
Piece of crap kitchen table from Target. I think it was $100 or something. Cheap crap, but whatever.
Metal folding chairs as kitchen chairs. Dogs can't chew these up. $20 each I think (two).
Thrift store solid wood desk. $30 from a thrift store in 2012.
Office chair purchased new for ~70 from Amazon.
Bookshelf from my parents' old house.
Filing cabinet, ~$25 from Walmart.
Bed. Used mattress and box spring, purchased in 2013 ($150 I think?). $80 bed frame from Amazon. Mattress topper stolen from former tenant in my rental house.
Floor lamps inherited from my dad when he left his last apartment.
Total of about $550 I have into all the furniture in our house, and the only thing that really sucks is the kitchen table. Not too bad I'd say. Accumulated over about two and a half years. Slept on the floor for the first few weeks (before we moved our bed in), had no couch for about a year, no TV for about a year and a half, fugly old lamps until my dad upgraded us, etc. That's life. Quality used furniture is the best. Cheap new furniture sucks.