People who think game design is "easy" or just a "fun hobby" should be wiped off the face of the Earth.
It's extremely loving evil at times. It can make you tired, depressed, angry, upset and just about every other negative emotion one can feel. There are a lot of times, like now, where I wonder why the forget I even care to be in this industry. Making games is ridiculously hard; making fun games people like is nearly impossible.
My whole team basically hates each other because of my other game, and this major project has made me lose all confidence in my design abilities. It just sucks right now.