Jim, yes, that's the song, All Used Up: glad you found it.

The un-named one I mentioned that Iain Mackintosh used to sing is called "Run the Film Backwards" and is also here on YouTube:
Run the Film Backwards

And here is:
"Pleasantly Pleased to be Sixty" by Ian McCalman

I am pleasantly pleased to be sixty
Astounded that I've lived so long
I had a great time till I reached fifty-nine
I thought that was it, but I'm wrong
It's not at all bad to be sixty
And frankly I'm doing OK
Apart from the sight in my mirror at night
There are no other signs of decay
Delighted to wake up each day

I accept all the gifts l I'm given
My heating, my bus pass and all
I really don't care, but if it is there
I'll take it no matter how small
I can be just as ill as I want to
And Google my symptoms with glee
I can do a sore back or a mild heart attack
Or die, if I want to, for free

It's my job to annoy younger people
Like, "How old do you think I am?"
They tell me I'm mad and I tell them they're bad
But frankly I don't give a damn
And I never drive above 30
No matter the limits or signs
It's amazing how slow my Toyota can go
With an angry Mercedes behind
Sometimes it's cruel to be kind

I am pleasantly pleased to be sixty
I'm far from the end of the line
There's so much to do and there's so much to do
And I'll do it, 'cause I have the time
It's not at all bad being sixty
But one thing is bothering me
My memory's gone and I can't finish songs..................