I'm Thoroughly Depressed

So a few months ago I downloaded a Sudoku app on my phone with 300 games on 5 levels of difficulty, so a total of 1500 levels. And it has been a personal goal of mine to finish every single game. Today I finished the last level!!!!! I was SO excited and proud and then... I realize that the game has been updated and the first 900 games have been swapped out with new ones....

....so I get to start again. I am so determined to finish this!!!!

 I shall conquer this, I shall! (name that movie)

Oh well, here's something to make everyone feel better:  http://www.buzzfeed.com/awesomer/scared-bros-at-a-haunted-house