Why do you need motivation?
I watched a Tony Trishka video not long ago, and he told a story about an old banjo player who influenced him. The Old Guy had the same routine whenever he picked up the banjo. He would pick just one string and listen to the sound. When the sustain died, he would pick another sting, until he picked all five. He told Tony he did this to remind himself of why he played. It was to hear “that sound.”
There might be a day when you don’t want to hear “that sound.” There might be several days. No big deal. There will be other days when you want to hear "that sound.’ And days when you cannot get enough of it.
That’s why a Lifetime Gold Pick membership is a really good investment!
(No, I do not get a kick back for signing up people. )
And for what it’s worth, I picked up my banjo last night to practice and spent an hour adjusting the cradle strap, then I was done with my banjo for the night.
I doubt this counts as practice, but somehow it was satisfying!