Hey, we’ve all been there. A lot of people say “good writers borrow, great writers steal,” and those people are all a lot more accomplished so I believe it. I firmly believe that, while “there are no new ideas under the sun,” there are plenty of combinations of cliches or tropes that if they’ve even been done before, haven’t seen a perfect adaptation. Haven’t told an ideal story. Haven’t been used to their fullest.
If you’re a writer, an artist or any sort of craftsman you know what it’s like to find sudden bursts of inspiration. Even walking down the street something simple can yank you into a stream of ideas–maybe a blacked-out window reminds you of a foreclosed building, which suggests to you a story (or a picture, or a sculpture, or…) hidden inside, waiting to be revealed.