The famous psychiatrist, Viktor Frankl, said that the most important concept we must hold on to while working with people is the conviction that people can change and grow. We should never allow people to get by with saying, "This is the way I am. I was this way in the beginning and I will always be this way." Dr. Frankl said we need to plead with such people: "Oh, no! Please don't say that. Don't think that. It's not true."
Yes, there is a strong current of determination in all of us. Bad habits, particularly habits of thinking, are hard to break. But, we can change. We can change to make different decisions, try new patterns. It's hard. It's painful. It takes a while before it feels real. We are vulnerable to falling back into the old destructive patterns. But, we can change.