Once the dams of conscious hindrances are swept away, you may not even have to ask God to fill you. When you have dealt with all obstacles, you must receive by faith from the hand of God. There is nothing to be afraid of in receiving God's power. The Holy Spirit's power is a LOVE gift for every child of God. You need not be afraid to fully open your life to His love.
Obedience is better than sacrifice.
Accept His gift and trust Him NOW for power. Let the sense of His love well up in your heart until it floods and fills you with praise.