ok, are you sure you're not PMSing? lol...
I know how you feel. my only pair of tweezers that work fantastically are old, and if I ever lost them...I think I"d go over the edge. But now I had lasik and see good far, but not so good up close -- so I grow wooly bear eyebrows before I even notice they need plucking. This would never have happened when I was younger....& nearsighted.
I hope your day/evening works out for you. I know how you feel. Some days it all works out, other days .. it doesn't. But smile and try to forget about it... pretend like you're taking a happy pill and that it doesn't matter (easier said than done!)... i'll bet you look lovely despite what you think!