I want to redo my garden myself.?

Im the manager of a company manufacturing garden products, we also instal. To create a private area it will need to be fenced off. Google for fencing in your area (my company is based in carlisle a1lapfencing.co.uk) ask them for advice. Most will come to your house to give a free estimate. you dont have to get them to do the job but pretend that you do. ask them for to send you an itemised quote then tell them its too expensive. This way you will have a list of everything you need. As for the patio yes you can lift the flags by levering them up with a spade but you will need to smash uo the concrete underneath. When you lay the new ones use a sand/cement mix of 3sand 1cement with water untill its like a thick cake mixture splat 5 big blobs of the mix in a pattern like the number 5 on a dice then gently lay the slab on top tapping it down with a rubber hammer or normal hammer using a block of wood to protect the slab. Dont stand on them for atleast 24 hours