Don't really get how a wooden table could put dings like that into metal. I would run my finger nail over them and see if it's just paint or actual dings. You can feel the difference. If just paint, they will come off with some lighter fluid or similar solvent. If actual dings, after you remove what looks like paint to me (hard to tell from your picture), they won't be too noticeable.
If that is your EDC gun, look at it as if it was a tool, or every day accessory you carry, etc. Things like that always pick up minor dings, dents, scratches, etc. You can't use a brief case, wallet, watch, glasses, automobile, every day without picking up minor damages along the way. A gun is no different. If this was an antique, collectible or rare piece, then I might be upset, but life isn't perfect - as much as we all want it to be.
It's only the first one that hurts so much - lol. Son't beat yourself up - life happens......