My voice has been changing lately, too. Suddenly there is a vibrato sneaking in where I never had one. I’ve been singing a lot more this year, as well. Definitely more confidence in how I sing. I would love to sing professionally. Not for big bucks, but for the enjoyment.
Sing at your American Legion halls, etc. Just learn how to pick good songs cuz I find that I can really love a song but I simply cannot do it. There are plenty more! Saving vibrato for ends of phrases is fine. Experimenting with vibrato is fine. Casey just didn’t know what to do cuz Blue Skies should never be sung that slow. I think they’re trying to get rid of Casey cuz Blue Skies isn’t hard and Rod Stewart sang it too. So did Willie Nelson! The tempo killed Casey. Casey didn’t kill Casey. He wasn’t experienced enough IMO to say, wait, wait, wait, let’s speed that up a bunch. I would have put in for faster. Casey didn’t demand it. You have to be pushy-persuasive to get what you want in life. Freepers know that on the political threads.