I have been encouraged by the book of James when going through rough times...James Ch 1:2-4 Dear brothers, is your life full of difficulties and temptations? Then be happy, for when the way is rough, your patience has a chance to grow. So let it grow, and don't try to squirm out of your problems. For when for patience is finally in full bloom, then you will be ready for anything, strong in character, full and complete. (The Living Bible)
The book of Psalms is also wonderful during these times.
Be encouraged and hold on to the faith...the best is yet to come!