Game Design is actually pretty good.
However, the problem with it is the fact that it sort of takes the entire fun out of playing games, especially the ones which you make.
You'll be able to see through all the loopholes and glitches concerning the games and figure out the mechanisms long before anyone else. And that begins to get a little troublesome as the game keeps progressing as you can now see more than other players can. And since gaming is about exploiting game mechanics, more often than not, games start to get boring for you. What was once magical and immersive no longer is since you now know exactly how it works.
Not to mention the sheer amount of tedious and repetitive work put into game development which comes with a few sets of challenges which would initially be interesting to solve, but would become more and more boring as time progresses.
Playing games is fun and if you want to continue to enjoy playing games, I'd recommend that you learn building games with a pinch of caution. It usually does take much more dedication than painting and writing or even some sports as well. Being a game developer isn't easy.
Good luck!
RE: Skills