What is the one thing you wish you could change about yourself?

I wish I could know how to excuse myself out of some conversations. Like when you are in a conversation with a self absorbed person who doesnt know how to listen to you but wants us to listen to them all the time. I find myself getting stuck in convo with them, nodding my head from time to time and smiling in btw. But once I start to say something they find something related to what I was saying and make it about themselves. And I HATE IT.