Hello all,
We have recently bought and moved into a house with a backyard. DH and I have not really done gardening before but he's very excited about getting his hands dirty. 
However, our backyard isn't flat. The front part nearer to the house is ok but further down from where the terrace was built (by previous owner), is uneven and sloppy. We are afraid that if we flatten the area near the terrace it'll affect the foundation of it so all we can think of is buy more sand/soil to level up the lower part.
How do we go about in doing this by ourselves? What do we need and how do we do it? Or if there's better idea, please do share.
Many thanks in advance for all advice!