You're going to meet resistance when you take a new course of action. At first, if you've been running on self-defeating thoughts and beliefs, they're going to resist any new ideas. It's just like starting a new exercise program. The muscles are tight and stiff, and they resist. The same is true with mental muscles. You need to continually practice running the new, positive thoughts in your mind at regular intervals and act on them. There's a direct relationship between beliefs and actions. You can't just think your way to success.