How old are you now Rat?
I understand what you are saying. I'm 68.7 and I feel great all the time. I guess I have slowed down some but I'm happy. Today (this month) I am painting the inside of the house when and as I feel like it.
So far, I don't know what "feel old" is and I hope I never know. When I die I just want to die and have it done with BUT right now I AM GREAT.
Because it is so hot here I put other things in front of lifting and riding (like today) but If I don't paint this morning it will be to hot this afternoon. AND the afternoons are for naps. Any fool knows that.