Depression is one of the most debilitating maladies afflicting mankind; and even among Christians, it is rampant. Depression has been around for a long, long time, and many prominent persons have experienced its sufferings. David, a man after God’s own heart, described his despondency with these words, “I sink in deep mire where there is no place to stand. I am weary of my crying; my throat is dried.” (Psalm 69:2-3) And he also cried, “Why are you cast down, O my soul? Why are you disquieted within me?” (Psalm 42:5.)
How can one overcome depression? Doctors do not have ready, sure answers, but there are some steps one can take. One, you can copy David and admit, “O my God, my soul is cast down.” (Psalm 42:6) You can tell God about your problem and ask for His help.
Two, you can seek the help of a competent physician. Often, depression is caused by some physical disorder or malfunction which proper treatment can correct. That ruled out, competent counseling is in order. (I highly recommend that you find a Christian counselor.)
Three, you can turn to God in prayer and trust. “I will say unto God my rock, why have you forgotten me? Why go I mourning? And in the darkest hour, you can know that the Lord will command His loving kindness in the day time, and in the night his song shall be with you. Your prayer unto the God of your life will be heard.” (Psalm 42:7-9) You can ask that “his light and truth lead you.” (Psalm 43:3) You can “go unto the altar of God--you can praise God and claim His joy”. (Psalm 43:4)
Four, there are some disciplines that you can employ. You can determine that you will “rejoice in the Lord.” You can count your blessings and thank God for each one. You can practice praying about everything. You can refuse to worry - you can think about good and beautiful things and refuse to let your mind dwell upon sad, disturbing things. You can find things needed and useful to do. Keep busy doing them! (Philippians 4:4-8) You can and must do physical exercise - walk, swim, jog, keep physically fit. Look for and enjoy the beauty of God’s creation; and keep on hoping and looking for that better day. Read your Bible - especially the Psalms - and keep company with good, happy Christian people, keep smiling, and it helps to occasionally laugh at yourself.