The enemy is lying to you and your believing him, Jesus gave his very life up for you and He loves you enough to do that for you. He never leaves us or forsakes us. Most of the time this attack happens when our life situations are not happening to our pleasing, things just aren't going our way, The enemy attacks the mind and the war then begins. Cry out to your loving Lord for help then wait on Him confidently, knowing He will here and answer your hearts cry.