Social anxiety can be very serious issues.
Concentrate on you - this feeling is not real. Dont let it consume you. Breath and relax
And this is why I love you
You are not worthless! Everyone makes mistakes.
Sounds like you're conscientious & well-intentioned. You didn't meet your need to contribute as you would have liked. I've disappointed half a dozen people this week, and may disappoint a few others by week's end. We do the best we can...
along the way, we will make mistakes, drop the ball, fail to deliver. We can beat ourselves up or we can resolve to learn from it, improve, and render a better job, service or product when the next opportunity comes.