For me, age has definitely slowed me down, but I still enjoy getting out and backpacking. Going shorter distances or taking easier trails has not been a bad thing at all.
If you are interested in trying a trip, but don’t want to commit to buying a lot of equipment right away, I’m aware that Great Miami Outfitters near Dayton rents some of the items you’d need.
There’s a local group, Cincy Backpackers, that arranges trips at all different levels. It might be a good way for you to “get your feet wet” again. They’re at: https://www.meetup.com/CincinnatiBackpackers/
Good luck with your adventures, whatever you decide to pursue.