In my darkest moments, I think I fucked my career sideways when I left the viper's nest of Ogilvy for sunnier San Francisco climes. But that's spilt milk and besides the point.
Back to the matter at hand.
I was lucky enough to hear Steve give a speech on Hayden's Mandala. Hayden describes this as "a model that describes all human and corporate behavior." You can see the whole magilla it here: http://haydensmandala.com/Intro.html Or take a gander at the Mandala below.
Right now at work I am midstream inside two winding digestive tracks. One involves trying to sell a new broadcast campaign. The second involves a new business pitch.
Very few people--even experienced people understand the oscillations that are behind any long term project. These oscillations (as pinpointed above) are implicit in everything we do.
Unfortunately people don't realize this. They get up when things go well. And suicidal when things go badly.
This is bad for your heart and your health.
You're much better taking the long view.