Get the shot if it makes you feel less anxious. It’s probably not helping you, but it’s not hurting you either.
I read your entire comment. I finished my reply before you made a couple of your latest edits, but I read those too and they don't change my answers. I feel like the assumption of bad faith here makes further debate fruitless.
In fact my second paragraph was directly addressing the claim that they don't help, so it's surprising you would so confidently assert I didn't read that part at all.
Your second paragraph did not “directly address the claim” - you just restated an opinion that you should do something whether it helps or not.
That’s not how science works, but sure, if you feel that way, it probably doesn’t matter one way oe the other.
My original point was one about social isolation, so I’m really done talking about this now.