I've been the same... after spending the first half of this year learning how to use effect pedals and playing almost daily, I just stopped mid-summer and have barely picked up the guitar since and when i have it's only been for five minutes or so. I hope to get back into it but my heart just isn't there at the moment.
A good 90 minutes a say, 6 days a week for me. At least an hour on bass, the rest on mando or maybe guitar.
Some folk look forward to retirement for a world cruise, or to go crown green bowling, or to take up tai chi. I spent years looking forward to being able to spend time making a noise.
I had formal piano lessons as a kid so can read music fairly well, although it took time to dust off the cobwebs and then convert my brain to the bass clef. I've never had proper lessons on bass or mando as such, butnI chat a lot to other players and the Internet is a goldmine of info for those that want to get on and have the mindset to push themselves.
I started doing another degree last year to fill a bit of time. Started with international relations, but quickly switched to environmental studies and management, which is topical. I seriously considered doing music, but in the end decided not to on the basis that if studying the subject turned out to be a stuffy grind I didn't want to risk poisoning a hobby that meant so much to me.