Welcome back Blue.
Well I'm now 69 and still gigging - I started playing bass (aged 17) in 1969 to Youth Club audiences in Church Halls. So to answer your questions....
What do you want to do and accomplish at 65 plus years as opposed to when you were 21? To continue playing live music as long as I can.
What is your focus at 65 plus,writing, performance, recording , self study? Performing
What are your thoughts on gigging at 65 plus as opposed to 21? Still love it - Love it, playing live makes it all worthwhile.
What type of folks do you want to work with at 65 plus? Level headed individuals (probably of a similar age) who also love playing live.
Take care Blue, stay safe and may your recovery be timely and positive.
Best wishes from NE Essex.
Chris