Did you know that you can create change in your life by gaining control of your thoughts? That's where the war is; in your mind. You can destroy every argument and proud obstacle to the knowledge of God, and take every thought captive.
"For though we walk in the flesh, we do not war according to the flesh. For the weapons of our warfare are not carnal but mighty in God for pulling down strongholds, casting down arguments and every high thing that exalts itself against the knowledge of God, bringing every thought into captivity to the obedience of Christ." (2 Corinthians 10:3-5)
Guard your mind by thoroughly examining thoughts of their worthiness. If the thought is not worthy don't allow it to take residence in your mind.
Change your thoughts, change your life.
One by One.