Basics for moving out. You may not need all of this, but it will give you ideas.
Entertainment - Stereo System (boom box/portable one will do), television, DVD player, (PlayStation and such if you use one), Home computer/lap top, if you use one now.
Furniture - Table and chairs, couch, bed, bedside tables,
lamp tables, coffee tables, entertainment unit (for stereo and tele), shelves, bookcases, wardrobes, desk, dresser.
Electrical items - Fridge, washer, dryer (or locate Laundromat), table and floor lamps, alarm clock, iron, toaster, kettle, vacuum cleaner (if the place has carpet), microwave oven,heater, fan, electric blanket.
Kitchen items - pots and pans, crockery, mugs, glasses,mixing bowls, cooking utensils, strainer/colander, cutlery, sieve, sharp knives, peeler, can opener. (Too expensive to live on take-away - and not very healthy - so you have to be prepared to cook)
Manchester - Pillows, cushions, sheets, pillow cases, towels, tea-towels, blankets/doonas, doona covers, table cloths, napkins, place-mats, coasters.
Cleaning - (Yeah you going to have to do that yourself) Mop, broom, bucket, dustpan and broom, sponges, scourers, toilet brush, dusters, cleaning products.
Miscellaneous items - vases, clocks, pictures, photos, ornaments, cook books, small sewing kit, basic tool kit.
Groceries - food, cleaning products, personal products (soap, shampoo, toiletries), toilet paper.
Don't just assume that you can take what you use now at home, ask mum and/or dad if that's OK. If its not, add them to your list.
Buy second hand, its cheaper to start with and you can update to new as finances allow. Go to Second-hand, Opertunity/Thrift shops, and haunt Yard/Garage sales. Ask around, people around you might have something they are getting rid of that you might be able to use.
If you share/have room mates, others may have some/all of these items, but you have to find out then, whether they will share, or what the rules are for using them.
Good luck, its a big step to take, and if you approach it in an adult way, you will make it OK.