Ahh, retirement.. sweet! :)
My parents have reached that, but still have their dog kennel as active, though part of it went to one of my brother's.
They have remained on their land, built a newer home, so still remain close to the grandkids & my siblings.
Dad remains with his outdoor interests, gardening, fixing up the land, and they walk/ ride bikes.. and yes they stay in routine, come mornings. - Some say the worst thing to do is get days & nights mixed up... But is okay to sleep a little later than normal, since there's no longer that need to be up every day ;).
My gramps retired & also built their home one line over, he built up a second pond- was like a piece of heaven ❤️ .. So, he had his fish pond and grama did her paintings (canvas, rocks, etc) , baking and sewing/knitting.
My 2 retired aunts, live out west, they keep up with their gardens, do some crafts and have taken the occasional cruise .
IMO, one comes to learn their own 'mode'.. learning they can kick back and take their time and not over do things... Don't put too many expectations on yourself, as you now get to learn a few more things of yourself- ability to try new/more things out there.Will take a little time as you 'adjust' to this change... but smile for fact that you made it! :)
You'll enjoy a lot more now . All the best.