Roof repair for my house

Hello / evening developers.

I have a problem with not knowing how to make a roof the best because this is probably useless.
Here are pictures of the roof.




That’s why I want you to tell me how to make this roof better, thank you.

I’d split the long part of the roof (the single wedge) the other direction and extend the one half over top of the second short section. Then I’d make the other side 2 wedges side by side, with one covering the half of the long section and the other extending over the short section of the building.
Also, look at real roofs. They extend over the edges of the buildings so that water doesn’t run down the walls of the building.