Why would you want to find the motivation to "develop a career" if you neither have to nor have the motivation for it? You are free to do what fulfills you, makes you happy.

Personally, I'm a Basketball coach for 8-12 yo kids twice a week. I wish I could devote more resources towards it, since it truly is the most rewarding experience I have on a day-to-day basis, but a man's gotta pay the bills.