I don't know how some guys do as well as they do. Even though I am a woman, my dad was a great role model. He taught me, by his example, how a man should treat his W and lead a family. Father's teach both their sons and daughters in these matters.
I think you are being a loving father, Jim. And I believe you have what it takes to get on track as a H and leader in the home. It makes perfect sense that you would hold back and become passive in your desire to not be like your father or brother. That's a hard thing to watch growing up, and not allow it to affect your own behavior. Most of us tend to have some our parents bad side's, even if we swear we'll never be like they were. So, my hat is off to you.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!