I ran into this about a year ago. I'm still new, about six years into the industry and have so much more to learn and grow. I became numb to it all after shooting three films a month for a few years. But I look back at the days where I worked my ass off for a very small hourly wage 9 to 5 Monday through Friday. While I work way more now, I'm working for myself and has it's gratification. For me, I focus on getting better with each Production. I'm getting out more to the shows, events, etc. which really helps because networking in this industry is key. I think anyone who spends a great deal of time working in his office/home all day every day, which I know a great deal of us do, some depression tends to kick in without any communication with the real world ;-)

Most importantly, in my opinion, you gotta have passion in what you do, or it just becomes routine, gets boring, etc. Thinking outside the box is always a great tool if you have the motivation to put it into action. I also feel, if you're doing something for money, that in itself is going to get old after awhile. I'm not at all saying money isn't key, but I'd rather make good money doing something I'm passionate about than make lots of money doing something that bores me.