For You light my lamp; The Lord my God illumines my darkness. Psalm 18:28.
The steadfast love of the Lord never ceases; his mercies never come to an end; they are new every morning; great is your faithfulness. Lamentations 3:22-23.
The sleep of the working man is pleasant, whether he eats little or much; but the full stomach of the rich man does not allow him to sleep. Ecclesiastes 5:12
And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus. Phil 4:7
Moods and feelings will repeat themselves, but if you bypass them and go for it (whatever that "it" is), you'll be a step closer to where you want to be.
For everything that was written in the past was written to teach us, so that through the endurance taught in the Scriptures and the encouragement they provide we might have hope. Romans 15:4