If you've become a huge act and you're still doing the same music you wrote with your friends when you were making zero dollars, you're lazy.
Being on a comedy tour is like traveling with family, everyone is all having a great time... then all of a sudden it turns sour. One thing gets said out of turn, and everyone is on everyone's last nerve. After an hour of silence, we all start laughing about it.
I've also seen that great men are often lonely. This is understandable, because they have built such high standards for themselves that they often feel alone. But that same loneliness is part of their ability to create.