The question isn’t, “How can I convince my boss of the value of UX?” The question is, “How can I convince myself of the value of my own work?” What is the value of your work? Does your work have value? If it’s not obvious, it doesn’t have any.
Because in the end, success isn’t the result of circumstance; it’s the result of response to circumstance. And that’s the heart of self-discipline.
In short: Proactive tasks are the strategic initiatives that move you dramatically closer to turning your goals into reality.