trouble with roof

[Dawg]

I have tried and tried to get the roof right but it's not working right. The closest I can get it you can see in the image. There is a skew off the back and one of the gables (on the left side of house) won't generate. There is a flat roof in back and an "L" shaped protrusion from the garage that is complicating the layout. I think I've tried every conceivable combination and each one always has something incorrect on the left side of the house. Any suggestions would be appreciated.