My favorite part about my job is not that it is never boring; it is that it is always exciting. There is always something new to learn. There is always something interesting to get from someone else. Whether it is an actor, or a sound engineer, there is so much to learn and there will never be nothing to learn. There is always something there.
It's very rare that you get a part that you actually like. People have a misconception, whether it be because actors lie or because you're reading interviews from giantly, massively famous actors, but you don't just get offered parts, all the time. You actually have to work to get them.