The mere act of trying to be better than the next girl reinforces the belief you aren't' enough. In order to be liberated, you must face that pain. Do the total opposite and bring awareness to your insecurity.
If you think you are confident then ask yourself; how badly do you want to be admired? In order to be free, we must accept ourselves fully. This doesn't mean fixing. But bringing full awareness, which is the opposite of what we wanna do. Full awareness without wanting to feel better. Yes, it might hurt, but it will diminish after a while. The pain is only amplified whenever you judge it as good or bad.
To accept is simple: 1. See and 2. Have compassion
It helps us get through the pain. We become an observer of our pain.
Once you allowed to be defeated through observation, you hit rock bottom. That's when you fully let go and surrender. That's when the comparison and judgments stop.
We discuss this in greater detail in my course.... click here.