Some verses on what might help/hinder prayers:
Psalm 66:18 – If I had cherished iniquity in my heart,
the Lord would not have listened.
1 Peter 3:7 – Likewise, husbands, live with your wives in an understanding way, showing honor to the woman as the weaker vessel, since they are heirs with you of the grace of life, so that your prayers may not be hindered.
James 1:5-8 – If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given him. But let him ask in faith, with no doubting, for the one who doubts is like a wave of the sea that is driven and tossed by the wind. For that person must not suppose that he will receive anything from the Lord; he is a double-minded man, unstable in all his ways.
James 4:3-4 – You ask and do not receive, because you ask wrongly, to spend it on your passions. You adulterous people! Do you not know that friendship with the world is enmity with God? Therefore whoever wishes to be a friend of the world makes himself an enemy of God.
1 John 5:14 – And this is the confidence that we have toward him, that if we ask anything according to his will he hears us.
Follow me!