I can relate to many parts of what you wrote, as I'm sure many will.
While it is possible, I suppose, that you "no longer have it in
you", I think that is probably not the case. I think you have
distanced yourself from your creative work, and lost touch with your
muse, your way of working. You can't go back, so must find a way to
go forward. Like any other relationship, the one with your muse
takes work, and must be maintained. I believe that it will not work
to expect to jump straight into "doing art"-- you must train, just
as for soccer.
Start off with some drills-- make some easy pieces, things you've
made before, or simple new ideas. Don't worry about your style. That
will take care of itself. Just get your hands on some materials.
Nothing stimulates creativity like creating.
Make things in series-- set yourself some parameters. For example,
decide to make at least 6 pins, each 1 1/2 inches square, that
incorporate a freeform turquoise cab and a texture. Then make them,
without belaboring the design too much-- few sketches, no concern
about masterpieces, just explore the parameters you have set. Make
10 or 12 if you can, each one different, then stick them
side-by-side on a board on your studio wall. Then set yourself
It may not help to have the exibit looming, but on the other hand,
it may. Just get in the studio and make things for enough hours, and
everything else will take care of itself. Try not to worry about
what you need to make for your show for at least a month. If you
reawaken your muse by using your hands and your eyes to really make
things, not to clean, sketch or plan, the ideas will come in due
Good luck, and let us know how it is coming.