Hi Stefan, I battle nerves too before the OMs. On my first one they hit me really bad and since then it has gotten much easier. I figured I’d share some things that have helped me in case they give you some ideas of things you can try.
I do my best to choose my song well in advance of the OM. That way I have plenty of time to get the muscle memory of the song set as much as it can be so even if I’m shaky, I have a better chance of playing through it. I also do at least two full run through sound checks on zoom before the day of the OM. One a couple weeks prior and then one two days before. That way I have an extra day before the OM to fix any tech issues that come up if needed.
What has also really helped me is to try and relax as much as I can the day before the OM. I run through my full song one to two times and then put down the guitar. I try to eat well, go to bed at a reasonable time and do my best not to stress over it. The OMs typically start at noon my time, so making sure I get good rest the night before has been important for me to perform at my best.
I really enjoyed your song and honestly did not notice any flubs. I am finding that mistakes are definitely more noticeable to ourselves than others that are watching. Hopefully you’ll find something that works for you!