Yes, change it here. However, be sure to also update everywhere you've mentioned or linked to that YT URL. Maybe google your YT URL and see where it's been mentioned.
I have two You Tube channels, each for a different business (Winged Horse Healing, Winged Horse Writing Studio). You Tube gave me the handles @Wingedhorsehealing5281 and @WIngedHorseWritingStudio4287.This was a year or so ago, and I just let it be. But I don't know why the numbers are there. Should I just delete them?
Real examples (taken via screenshot today) -- And this one I didn't get a screenshot before excitedly clicking on it to like and comment... ...this is from Elena Foucher one of our course participants! Besides the comments below (if any), also check out the live chats from zoom for this segment here. (This is a preview segment. If you don't see any comments below, you might not be logged into the course, or perhaps not enrolled. If you haven't enrolled, you can do so here.)
My simple guidance (that I myself use!) for lighting, audio, and visuals on a budget: http://smpl.ro/VideoTools (This is a preview segment. If you don't see any comments below, you might not be logged into the course, or perhaps not enrolled. If you haven't enrolled, you can do so here.)
I use a Jabra headset for my microphone? Should that be OK?