I hear you. I'm the same age and haven't had a period since I was 44. I'm not on HRT either; it's never occurred to me to seek it. I do take multivitamin and mineral and iron supplements, plus a menopause support supplement which I think helps me.
I'm a bit overweight but am taking steps to get it down. Exercise isn't easy as I have a limp from an injury and can't walk far before that leg gets tired, but I use a mini stepper with hand weights a few times a week.
I've never been a great sleeper, think it runs in the family, but I use a sleep sounds app through the night to relax me, my sleep is fitful, but at least I get some rest, I feel.
I have a 13 year old (plus two in their 20s), who can be a cheeky sod, but she makes me laugh and helps me keep from feeling too ancient.
I've recently got into a band (singer also has a solo career) and I really enjoy going to their gigs; they hail from the '90s, so their fans aren't so young as to make me feel like an old un, in fact some are around my age anyway. I'm going to more gigs in Spring; it's good to have something to look forward to.
I'm relieved not to have small children dependent on me anymore! The 22 year old is still at home, so DH and I can go off for weekends every now and then and leave the two of them home.
I do like a drink, but I'm sticking to weekends only as I'm trying to eat moderately and stay off the booze during the week.
I do like to swim a bit, but have been off it due to a neck and shoulder injury, I'll try to get back to it in the Spring.
I do creak a lot more now, I know I'll never be as agile again as I was in my 20s, but I'm not dead yet!
I hope you can get your zing back somehow, OP, pass some around if you end up with a surplus! 😉