Greetings from Southern Nevada to Northern Nevada!
I'm also in my 50s and while a played a bit in my youth I've decided I am putting in the time and going to work on playing well. I just joined the site a couple weeks back and I'm really enjoying it.
Hang in there on the frustrations. I agree with manXcat, they will always be there and you will work through them. Repetition is a wonderful thing.
Ron