I used to be a classic workaholic, and after seeing how little work and career really mean when you reach the end of your life, I put a new emphasis on things I believe count more. These things include: family, friends, being part of a community, and appreciating the little joys of the average day.
If you're acting, then there's a prescribed way to behave; whereas in life there's no prescribed way. So acting feels like a comfortable way to get through the day.
It doesn't matter how adventurous you want to be, you've still got to contain your identity.