I worked on a picture. I made a lineart - it was a horse, winged horse, in a storm - and thought "Hmm, this looks good! Maybe a bit traditional and cliché, but good!" It needed colours and I decided to use watercolours.
I worked hard. It took hours of painting and more hours of waiting for paint to dry. I finished background, wasn't really content but decided it isn't that bad... I did mane and liked it... I did some underpaint on the skin and thought it starts to look good...
...and then I screwed up. My black watercolour went all blaargh and I made it even worse because I used it too thickly. It ended with uneven grayish stains everywhere.
Daaaaamn, that's just not fair!

Emotions. Blah. Srsly, I should stop whining and start something new.