4. Sometimes, even if you love your job, you're going to hate your job.
This can't be helped: It's the nature of the beast. On the other hand, if you really love what you do, it won't feel like work at all; but you definitely have to put in your dues to get to that point, that's for sure. You don't get to Miranda's level –– or even Emily's, for that matter –– by complaining. Well in front of Miranda, at least.