Why do I do this to myself?

Why do I say at work "I have a great idea, how about I do an original painting to be turned into the office Christmas card, to be sent out to ALOT of incredibly important clients!" And do I stop there? OF COURSE NOT! For then I add "I will donate the painting to our United Way Auction to help raise money!"

Sure...this sounds like an absolutely fabulous and altruistic idea, but I always seem to block one critical component from my mind.

That I actually have to DO the painting.

And now I am stressed, with little time, looking at what I've painting so far with terrible acrylic paint and my kids' brushes, because I can't find my oils and good brushes, and can only think:

CRAP! WHAT HAVE I DONE?!!!