Do whatever it takes to enjoy cycling. Cafe rides, Camping, 10 miles, 100 miles..whatever it takes.
My little anecdote:
In 2011 I drove to PBP. I completed it and drove home. On arriving home I found I had completely fallen out of love with cycling, I was cycled-out. I did other stuff for 2 years.
In 2015 I rode to PBP, started PBP but bailed out on the return journey with neck problems. I felt very, very, low in Loudeac. I rode home from Paris, stopping at any nice cafe or bar that took my fancy and fell totally in love with cycling during the ride home. My failed PBP felt so much better than my previous success.
With hindsight it's obvious, I crave a challenge like PBP but, fundamentally, I LOVE riding between stops at nice bars and cafes (rather than riding past them wishing I had time to stop).
Time for you to stop at a few nice bars and cafes i think.