For 68 I still have a respectable amount of hair yet (some thinning) and because of this stupid virus I couldn't get a barber for 3 months. I was already overdue and my hair got pretty long. When I finally got to my hair stylist (Carey's too) I had her cut it "Military." 3/4" sides and back and four or five on top. It sure felt good. When my hair was longer it was a pain to wash and dry. Now it's wash and wear!
I feel your pain. I started seeing some thinning myself and started using a highly rated anti-thinning shampoo. I'm not being paid for saying it, but it really works. I went through my first bottle and Carey said that it looked thicker after my new haircut. We found a bunch of new growth on my scalp. Honest, this stuff works. I just bought 4 more bottles because of the possible supply shortages in the near future.
Here's the link. Please try it. All you need to do is shampoo with it every day. I've been religious about that part.
https://smile.amazon.com/gp/product/B01CUGDW24/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1