You can't build anything decent?
Are you feeling uninspired?
Do you have a builder's block?
Then here's the cure. Get up and take a walk in the city. It's that easy.
Frankly, in a city there are so many interesting buildings or details to see, just walk with open eyes and eager mind and you shall find inspiration.
If that doesn't work, then you can try reading something. It may help you, since books require imagination and creativity to picture the happenings in your head.
I hope you recover soon.