Yes Mark I had the same feeling a year ago.
And I have a solution for you. Go back to the hardware.
It really makes a difference. There's more to explore in new sounds and freakinezz.
Yesterday I was at the audio shop checking out some new synths.
And boy oh boy do I feel happy again. These guys in the hardware business never stood still with developing and evolving sounds...

I wouldn't say ban all your plugins and digital shit. Just combine it with the goods. And ofcourse don't rush it. Take a walk outside. Catch the inspiration from your environment. Just life!