about to get stomped by a Physics test

I have been praying for God to enlarge my view of Him, and just minutes before the test, He gave me this passage:

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,
yet I will rejoice in the Lord;
I will take joy in the God of my salvation.
God, the Lord is my strength:
he makes my feet like the deer's;
he makes me tread on my high places.

Habakkuk 3:17-19

Thank you, Lord, for peace.