Distraction is part and partial of prayer. God allows us to show what sort of spiritual stuff we are made of. He allows this. I’ll say it again, He allows this. He wants to see if you really care or how much you care. Many times people get flustered and give up because prayer is not easy. How sincere are we when we tell Him we love Him. Now’s the chance. We must show our determination all the more to be faithful and obedient when it isn’t easy to do so. At that moment you may wander where is He? No joy, no happy thoughts, no nothing except fighting to keep your mind on what you are doing. That is what He wants to see and pleases Him. If your tired and sleepy, don’t give in but rather dig in and try all the more to please him by returning you mind to what will please Him. That is the moment of grace. Thank Him for your distractions as well as the easy moments. But whatever you do, keep faithful to all your prayer life because it is so important that we either sink or swim. Graces to do good and be faithful come thru prayer. It is the gurder that supports everything.
Just a thought.