The devil will do everything he can to interrupt this resolve and it is important that we recognize that and no matter what kind of sin we fall into we should still pray each and every day. It is not hypocrisy to pray in a state of sin. Instead it is the only sane thing to do. When you have offended the Lord it is then that you should run to Him all the more. The devil will also try to trick us into thinking the Lord is not listening to our prayer. In this moment we must remember that the primary objective of prayer is for us to listen and not just speak. We must also remember that God has promised He will always listen and answer our prayers although not always in the way we expect in the time we expect.
The bottom line is that we could all be saints if only we prayed. Do not let anything get in the way of this and God will draw you in. He will speak to your heart. You will become whole in Him. He will set you afire.
May the Lord draw you into His heart through our perseverance in prayer.