I've also "picked a subject" nearby, like an egg, and made myself come up with several ways to shoot it. The several times I've done this, I've gotten one or two absolute stars (IMO). Then I felt better about taking my camera back into the world again.
This has absolutely nothing to do with film, cameras, processing or anything related to photography. It's about you and finding what it is that you're really passionate about. Find this and photograph it and you'll never be in a slump again. It took me three years to find my passion and I've been pursuing it steadily for better than three years and have had no slumps. Oh, and your photographs will improve as well once you find your passion.
I've been everywhere ooooohhh yeaahhhh still I'm standing tall.
Putting photography aside and doing something else is a great idea.
"He took to writing poetry and visiting the elves: and though many shook their heads and touched their foreheads and said 'Poor old Baggins!' and though few believed any of his tales, he remained very happy till the end of his days, and those were extraordinarily long "- JRR Tolkien, ' The Hobbit '.