In personal life, the warm glow of nostalgia amplifies good memories and minimizes bad ones about experiences and relationships, encouraging us to revisit and renew our ties with friends and family. It always involves a little harmless self-deception, like forgetting the pain of childbirth.
Greatness comes by doing a few small and smart things each and every day. Comes from taking little steps, consistently. Comes from a making a few small chips against everything in your professional and personal life that is ordinary, so that a day eventually arrives when all that's left is The Extraordinary.
I don't think your personal life has anything to do with your professional life. They are separate things. Whatever is happening at home shouldn't be carried to work. Everyone has his/her own journey. Some revel in the fact that they derive that from personal contentment, and others draw it from extreme sorrow.
Your personal life, your professional life, and your creative life are all intertwined. I went through a few very difficult years where I felt like a failure. But it was actually really important for me to go through that. Struggle, for me, is the most inspirational thing in the world at the end of the day - as long as you treat it that way.