Hay you old fart, it's me the abstainer. You sounded pretty good to me when we were chucking it back around mid-night.
But your right, who we fooling. I can hardly make an "F" chord and two plastic implants in my vocal chords didn't make a difference. However I still go to the old folks home and play and sing once a month (This year being my 40th.in doing so.).
Here is my advise.
"Fuck it".
Get off your ass and get to see your buddies again and if it is just one song you can do or just a couple on the Bodhran than great. I bet they would love to see you. Do it man.

I think on some past thread I wrote this following verse and can't remember who wrote it but it was from someone out West (Canada that is.)

When I can't play I'll sing.
When I can't sing I'll whistle.
When the time comes I can't whistle no more.
I'll sit my self down and I'll listen.

If someone reads this thread and knows the composer please respond.