Everyone gets at least a little bit of nerves.
Try to remember that you’re surrounded by people who will render help if something happens, and any injuries sustained will heal in time.
There’s not really “good” advice to give, because everyone’s different. Take some time to find something that works for you whether that’s a pre-protest warmup, meditation before or after, breathing exercises, ideological or philosophical motivation, etc. Something is going to help you slow your heart rate and keep your head about you.
This reads like a man who is grasping for anything.
This reads like a man who is slowly losing his mind.
“woe is me, because we legally gave up our nuclear weapons as part of international treaties Russia is liberating ethnic Russians who we were bombing en-mass. why us? pls give us membership in NATO and turn this into a world war, I promise you’ll benefit”