I've found when I let one vector win (I give of myself beyond what I can handle to keep myself healthy and treat those around me with love and dignity, or, (more likely) I indulge my self-preservational needs to the point that they become wants, and those wants are indulged to the point where I simply put in time for everything else that doesn't indulge my wants.
Both of those places don't sit well with my insides, when I listen to my soul. I believe there's room to move between the two vectors, but when they get to the "Hazard" zone of either end, I feel depressed with my choices.
Give yourself a challenge, oh mighty NT one. You don't need to sweat blood over your job or career, there's nothing wrong with a 9-5er that lets you focus on personal goals, but aiming low might depress you later on in life when you're all settled.
You can also do this by picking a less-challenging-but-still-a-challenge career and then looking for places to pour your heart and soul into outside of work (volunteering, mentoring, training for sports, etc.)