Do you know your spiritual authority in prayer?
I went to church for years and never heard about the devil. It's not fun talking about him, and I don't ever want to put too much focus on him. But the truth is, we have an enemy. First Peter 5:8b (AMPC) says, "...That enemy of yours, the devil, roams around like a lion roaring [in fierce hunger], seeking someone to seize upon and devour."