"Whenever we take a chance and enter unfamiliar territory or put ourselves into the world in a new way, we experience fear. Very often this fear keeps us from moving ahead with our lives. The trick is to feel the fear and do it anyway."
Feel the fear and do it anyway - Susan Jeffers
I too went for a career change when stopping drinking, it wasn't just my drinking that had to change, but aspects of my life I wasn't happy about that were caught up in it too.
My recovery hasn't been just about drink, it's been about changing my life, what I do for a living, improving my relationships, changing my attitudes, etc.
If you feel something needs changing then I say go for it! Life's too short.