Read 1 Kings 19:4-8
19:4 But he himself went a day's journey into the wilderness, and came and sat down under a solitary broom tree. He asked that he might die: "It is enough; now, O LORD, take away my life, for I am no better than my ancestors."
19:5 Then he lay down under the broom tree and fell asleep. Suddenly an angel touched him and said to him, "Get up and eat."
19:6 He looked, and there at his head was a cake baked on hot stones, and a jar of water. He ate and drank, and lay down again.
19:7 The angel of the LORD came a second time, touched him, and said, "Get up and eat, otherwise the journey will be too much for you."
19:8 He got up, and ate and drank; then he went in the strength of that food forty days and forty nights to Horeb the mount of God.
Elijah's battle was with the prophets of Jezebel. It was violent - but he never seemed to get to the point of 'victory' - despite wonderful miracles and definitive successes along the way. What he needed to sustain him was not success, but God's company... to find that he needed a rock bottom moment in the desert - a forty day hike. An encounter on mount Horeb.
When I pray: "It is enough..." let your Holy Spirit be my fresh baked bread and cool water to carry me on the journey.