"Too Old" is a ridiculous notion. Keep playing. Keep creating. And 40 is NOT old!
No truer words spoken. If you live to be 80 that's only 29,200 days-not very long so time to get hopping and make the best of what you got. When I was a young lad "I use to think" poor trees I bet they envy us humans, now I sit under my best friends Live Oak orchard hundreds of years old and I envy the trees and wonder what events happened in their stay.Discussions like this only matter to people with an old mind, because as long as your body allows you are never too old for anything..
For example, if you are 75 and you realise that you only wanted to be a punker your complete life but society told you that you couldn't and therefore you never were one, then for sure start being one for the time you have remaining..
Just try to live the life you want to live, regardless what anyone else says or thinks, because you only have one life..
Never give up! If you really want to play in a band, you'll find someone compatible with you. Don't mind the haters!
I just turned 29 a couple of days ago and sometimes my wrists and ankles hurt so much. I guess it's because of the way I play.