Trust God. He will never leave you nor forsake you. You are not alone. I have been through very hard times... death of loved ones, failed businesses, lost homes, lost vehicles, long periods of unemployment, life threatening illnesses, pain, depression, very low income. Now my husband is unemployed again after closing our business. Even though I have failed, my husband has failed, plans have failed, God has never failed me.
Live in Philippians chapter four. God does not slumber or sleep. His arm is not too short. He keeps those in perfect peace who keep their minds on Him. Philippians chapter four tells us to be anxious for NOthing. In everything we are to pray, with thanksgiving, and make our requests to God. We have to trust Him. He then will give us peace that passes all understanding. I've got that peace right now even though my husband is unemployed, we have no income, and we are living on our limited savings. I have a peace that somehow, someway, God will take care of us. I am trusting God to bring my husband a good job.
Fill your mind with the Word of God. Saturate yourself with the Bible. Read it, listen to it, speak it, write it and put it where you can see it. YouVersion.com has plans for reading through the Bible. I've read and listened through the Bible several times since I started using it.
Don't isolate. When I feel down, I tend to draw back and isolate. Don't do it. Talk to others. Be involved in church. Call a friend. Spend time with family. Keep talking to God.
Find a trusted Christian friend and talk. Make sure that it is someone who will always point you back to Jesus and pray with you.