One of the great fallacies in the Christian world is that if you profess to believe in something, that means you actually believe it.
There’s an old Christian song, “I surrender all”. The words are good, but singing them doesn’t mean you live as if they are true. (even if you feel good about it at the moment, and even mean it with all your heart.
Faith is a practice and a process, not only a decision.
Am I daily surrendering to the will of God? Trusting Him fully and submitted to Him so that only His will can be done through me? In those moments, my life is no longer my own. If I die, I die to Him, and if I live, I live to Him.