And I said, My strength and my hope is perished from the LORD: Remembering mine affliction and my misery, the wormwood and the gall. My soul hath [them] still in remembrance, and is humbled in me. This I recall to my mind, therefore have I hope. – Lamentations 3:18-21
Everyone suffers some form of depression in this life. But the key to overcoming depression or any form of afflictions lies in the above passage of Scripture. Jeremiah was lamenting about the state of Israel and Jerusalem in Lamentations 2. He talked about how a beautiful City like Jerusalem which was once called the perfection of beauty has become a laughingstock, (Lamentations 2:15-17). And then in Lamentations 3, he talked about his own misery.
So remember that everyone goes through depression, but as a Christian, you can overcome any form of depression by dwelling on the Word of God instead of dwelling on your worries and troubles.
Stay blessed.