Meditate on God's love for you. That's what is going to change you. If you don't like something about yourself, "knowing that you know" that God loves you is going to change it.
God change you. It is the private time you spned with God, just loving Him and letting Him love you, that is going to cause you to grow up and be strong in your spirit.
The devil will give you one excuse after another for not spending time with God. Get serious with God and cry out to Him. The Word of God and fellowship with Him will change you. Paul says in Philippians 4:13, "I can do all things through Christ which strengthened me" (KJV). In other words, there is nothing in all creation you can't do through the power of Jesus Christ.
Use the problems that come against you as opportunities to grow. Find out what God will do because He loves you! If you will lean on God and let God love you and you love Him, you can forget all the trying to operate in faith and enter into rest.
~ Joyce Meyer, Being the Person God Made You to Be.
In this is love: not that we loved God, but that He loved us and sent His Son to be the propitiation (the atoning sacrifice) for our sins. ~ 1 John 4:10