Sometimes letting your imagination do some work is all you need to get out of ruts in the hobby. They don't have to be real good stuff like show quality, just something that becons you to see a project through, begining to end, for maybe the first time in ages.
I once navalized a Gloster Javelin, folded wings, better tailpipes and landing gear from my spares box and some scrounged up decals.
I also did an F-8 up in a green and grey splinter camoflage and put modern Luftwaffe markings on it.
They're both long gone from my collection, but they were a lot of fun to make, because there were no rules of reality any more.
I've got some drawings I made of what I think the F-111K might have looked like if it ever came to reality. One day I'll find a model of an F-111 that I like and give it a go.
When it comes to modeling, or indeed any hobby, I always say: "If you're not doing it for yourself before anybody else, then you're not doing it for the right reasons"