Ever notice how much dust is in the air, in your own house? Most of the time we cannot see it. It is only when the a ray of sunlight pours in through the window that we can see it. There's not much we can do to remove it either. It daily builds up, we can get some of it...but mostly we find we're fighting a losing battle.
Our inner persons are much like that. We do not realize how much build up of 'dust' there is, until the Holy Spirit shines a light inside that points it out. God would not point something that needs changing or cleaning up in us without providing the power to do just that. That's God's grace. His grace is sufficient for the day. We can boldly approach the throne to receive mercy and grace that's sufficient in time for every need.
But we must first make ourselves available to the Holy Spirit for this inner working. We must present ourselves to God and ask for forgiveness in Jesus' Name, repenting, and receive that cleansing. Have you ever just asked for forgiveness without naming any sin? Sometimes we are not confessing sins to God, just asking for a clean sweep. Forgiveness requires us to confess our sins to God, in repentance. If you approach God on a daily basis, (even hourly) and confess your sin, do you find yourself repeating the same sin? Where then is the repentance? Turn away from such sin. Asking God to help in that area to be fully rid of that controlling sin...may be what you need.
Sometimes we are unaware of some of our sins, and the Holy Spirit will point out such things to us while we are in prayer to Father. He shines God's light into our innermost being. The Holy Spirit teaches us how to pray, tells us what to pray for and intercedes for us.
God's blessings follow every act of obedience, and He wishes to bless us. We must be free of sin, to be mature in Christ. It's time to put away childish things and begin thinking like a man. We cannot do anything apart from God, but with God all things are possible. All things.