Landscaping question

Hi All,

I duplicated this post , don't know how to delete it. I figured out that this is the wrong area to ask.

First time posting here, finally i am starting my adventure in gardening as I got my first house few months ago, and also was recently scammed by a fake landscaping company (£2k out of pocket now, but well..at least they got me some patio slabs )

So, I decided to take things with my own hands and  I spend the this weekend digging out the old grass and weeds which was kind of dead, and also remove a lot of stones  in the garden. (The back workout  was insane lol) I am now left with unlevel/uneven soil and full of small stones. I wanted to create a patio at the back of the house and add some turf at the front. Put a picture of how it looks at the moment.

Any advice on how to go on from here? Should I dig more or can I start levelling? What material should I level this with? 

Thanks for the help