The first stages of your life are to learn to be a master over yourself.
But then comes a major and difficult transition in life, when you take on the responsibilities of a family.
Now you must learn to put aside your own self-improvement for their sake.

I agree with Miriam from Lakewood's comment on 8-6. Our character refinement deepens and expands in the process of raising a family. There is no separation between individual character refinement per se and one's character refinement in relation to other human beings & to God. If God is One, as we affirm in the Shema, so is our life with God, other human beings, and ourselves. Once we have children, our souls do not stop growing and yearning for God. Quite the contrary. The growth can become exponential and at the same time become one with our Creator.