You can be as happy or as miserable doing design as anything else you decide to do. It doesn’t matter what it is; it only matters that you commit to it. Do you care? Can you commit? That’s it. I don’t necessarily believe graphic design is any better or worse than other careers you can choose, but I do think the dedication has to be there. Yes, there is the dignity of work, but—and maybe this is just selfishness—whether you’re a plumber, a policeman, or an architect, if you don’t look forward to going to work in the morning, that’s really sad. That’s where a lot of people end up for various reasons.