Oh, man Dan. Don't get bummed about 40!
Forty is that great time when you have that perfect combination
of young at heart without a great abundance of naiveté.
(tho, you still need some... )
Most of the people that I've grown up respecting did their best work
after they had 40 years to formulate them.
Yeah, we had some great musicians who did great work before dying at an early age,
but I can't help but think what Trane, for instance,
might've accomplished if he continued his growth long after 40.
Or Brownie, etc...
Forty, in many ways, is a great time to start from zero
using the ideas that you've formed up to that time.
I think that when you hit 50, that's the time to reassess
what you've done the previous 10 and see how you feel about how your life's going.
Forty was a great "cleansing" time for me.
I was actually looking forward to it and have made
the most of my forties creatively ever since.
Forty's the best! (50 is second best - )