Back away from the ledge. Close the window.
Sit down and read Habakkuk 3:17-19. Heck, read the whole book too, but the song of praise at the end reminds us to put our joy in the Lord and in "the God of my salvation."
Course, if the "god" of your salvation is anything other than the Lord Jesus Christ, you need to repent and seek salvation from the One who truly offers it, from the One who truly conquered death, Hell, and the grave by taking our sin and the wrath of God in our place.
That need being met, we can truly say that though our "flock be cut off from the fold and there be no herd in the stalls," we take our strength from the Lord:
17 Though the fig tree should not blossom,
nor fruit be on the vines,
the produce of the olive fail
and the fields yield no food,
the flock be cut off from the fold
and there be no herd in the stalls,
18 yet I will rejoice in the Lord;
I will take joy in the God of my salvation.
19 God, the Lord, is my strength;
he makes my feet like the deer's;
he makes me tread on my high places.