Hi Lyla,
I don't know what our total monthly outgoings are as I never really look but they are a fraction of your list There's just the two of us and we don't have a mortgage. Our electricity bll is £30.83 a month (I've just looked), the gas is much the same, water is £25 a month and I spend about £40 a week on shopping.
You've got some very expensive luxuries there. As HC says, get rid of the Sky and the mobile phones. Rather than just watching TV there are plenty of pastimes and hobbies you can take up for very little money. Do you pay bills by direct debit or do you feed a meter? It's much cheaper to have a standard meter and buy your power from one supplier.
You obviously can't afford a car either. Despite what people like to think, cars are 100% luxury items. My car insurance after 31 years driving is £151 a year - £2.90 a week! The golden days of motoring are over. Recent governments have EU emissions targets to meet by 2018 and 2021 so they are quietly encouraging insurers push premiums up to price new drivers off the roads and onto public transport. You'll also have service and repair bills, road tax and fuel etc. If you haven't been driving for long then you just can't afford a car. It's much cheaper to get taxis, public transport or walk.
Your electricity bill is very high too. Do you cook with electricity or have any electric heaters? They cost a fortune to run compared to central heating.
As a general guide I would sit down and have a close look at what you actually NEED rather than what you want or would like.
Good luck.