You are already full of God.
"Be filled with the Spirit."
Ephesians 5:18 (NIV)
You don't have work, try, struggle, pray, believe or do anything else in order to be full of God. You already are full! You have all of God inside, filling you to the brim. You are complete and full in Christ, filled with God through your union with Christ.
Be filled with the Spirit, the scripture says. It doesn't require any effort to just be! Be! Exist just as you are - full of God, filled with the life and presence of God.
No other person has more of God than you.You have just as much of God as anyone else - with no work or effort needed! You wake up filled with God, face everything in your day filled with God, and go to sleep filled with God. He's filling you at every moment. He is living inside you, filling every nook and cranny of your being. You cannot get any more of God or get any more filled with God.
A Thought: Be yourself - a beautiful person full of God.