Through my experience, I learned what should be done to treat depression, which results from mental burnout:
Step One
Reach out to God with a contrite heart. Call on Him out of the depths of your despair. Ask for His help. This begins the process of divine intervention.
Jeremiah 29:11-13: For I know the thoughts that I think toward you, says the Lord, thoughts of peace and not of evil, to give you a future and a hope. Then you will call upon Me and go and pray to Me, and I will listen to you. And you will seek Me and find Me, when you search for Me with all your heart.
You must be born again
John 10:1-18: I tell you the truth, the man who does not enter the sheep pen by the gate, but climbs in by some other way, is a thief and a robber. The man who enters by the gate is the shepherd of his sheep. The watchman opens the gate for him, and the sheep listen to his voice. He calls his own sheep by name and leads them out. When he has brought out all his own, he goes on ahead of them, and his sheep follow him because they know his voice. But they will never follow a stranger; in fact, they will run away from him because they do not recognize a stranger's voice. Jesus used this figure of speech, but they did not understand what he was telling them
Therefore Jesus said again, "I tell you the truth, I am the gate for the sheep. All who ever came before me were thieves and robbers, but the sheep did not listen to them. I am the gate; whoever enters through me will be saved. He will come in and go out, and find pasture. The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full.
I am the good shepherd. The good shepherd lays down his life for the sheep. The hired hand is not the shepherd who owns the sheep. So when he sees the wolf coming, he abandons the sheep and runs away. Then the wolf attacks the flock and scatters it. The man runs away because he is a hired hand and cares nothing for the sheep.
I am the good shepherd; I know my sheep and my sheep know me - just as the Father knows me and I know the Father - and I lay down my life for the sheep. I have other sheep that are not of this sheep pen. I must bring them also. They too will listen to my voice, and there shall be one flock and one shepherd. The reason my Father loves me is that I lay down my life - only to take it up again. No one takes it from me but I lay it down on my own accord. I have authority to lay it down and authority to take it up again. This command I received from my father.
Step Two
Believe God's promises. Claiming His promises is the second step in dealing with depression.
Philippians 4:6 Be careful for nothing; but in everything by prayer and supplication with thanksgiving let your requests be made known unto God.
Luke 12:24 - "Consider the ravens: for they neither sow nor reap; which neither have storehouse nor barn; and God feedeth them: how much more are ye better than the fowls?"
II Timothy 1:7 - "For God has not given us the spirit of fear but of power and of love and a sound mind."
James 4:7 - "Submit yourselves to God; resist the Devil and he will flee from you."
Proverbs 3:5 - "Trust in the Lord with all thine heart; and lean not unto thine own understanding. In all thy ways acknowledge Him and He shall direct thy path."
Philippians 4:7 - "And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus."
Hebrews 13:5-6: "Let your way of life be without the love of money, and be content with such things as you have, for He has said, "Not at all will I leave you, not at all will I forsake you, never!"
so that we may boldly say, "The Lord is my helper, and I will not fear what man shall do.
If you believe in God and you know that He is real, then cast all your cares on Him and He will give you mental rest.
Step Three
Find a church that has good worship and praise. As you begin to praise God from your heart, the clouds will lift, if only temporarily
Step Four
Because of the chemical imbalance in the brain, medication may be necessary. Seek a psychiatrist who will be able to assess your individual medical needs
Step Five
Exercise. Make a simple schedule that would not be too difficult to keep. Set aside a specific time for a good walk
Step Six
With the help of a close friend, relative, or qualified counselor make a summary of your present situation. Draw a line down the middle of a page. On one side list the negative aspects of your situation and on the other, your blessings.
Step Seven
As Christians, we need the gift of the Holy Spirit to empower us to raise us up above the circumstances of this world and to bring us closer to God. The Holy Spirit helps us to understand scripture, resist temptation, increases our faith and gives us joy and happiness even while we are on this imperfect earth. Only by reading the Bible will you be able to increase your faith in God. I would advise reading one to three chapters a day, beginning with Psalms 1, reading through to the end of Revelations, and then from Genesis. Read at a speed that enables you to absorb and understand the message and, if necessary, read another, more amplified translation of the Bible.
Step Eight
Philippians 4:8 – The Apostle Paul says that we are to fill our minds with pure, good and noble thoughts to be on guard against the worlds assaults on the purity of your thoughts. As you fill you mind with what is good, your words and actions will follow suit
Watch over your heart John 14:1: Let not your heart be troubled. You believe in God, believe also in Me.
What we choice to believe, Mark 11:23: For truly I say to you that whoever shall say to this mountain, Be moved and be cast into the sea, and shall not doubt in his heart, but shall believe that what he said shall occur, he shall have whatever he said.
Speak to your problem, not about it, James 1:2: My brothers, count it all joy when you fall into different kinds of temptations, knowing that the trying of your faith works patience.
But let patience have its perfect work, so that you may be perfect and entire, lacking nothing.
No one can take your peace from you, you have to give it away, James 1:12: blessed is the man, who endures temptation, because having been approved; he will receive the crown of life which the Lord has promised to those who love Him.
Deuteronomy 8:2: And you shall remember all the way which Jehovah your God led you these forty years in the wilderness in order to humble you, to prove you, to know what is in your heart, whether you would keep His commandments or not.
Resist the temptation to give in move forward, keep saying its only a test God is taking me to a higher level, Mark 14:33: And He said to them, My soul is exceedingly sorrowful to death. Stay here and watch. And He went forward a little and fell on the ground. Moreover, He prayed that, if it were possible, the hour might pass from Him.
Pray and Praise, Mark 14:38: Watch and pray, lest you enter into temptation. Truly, the spirit is willing, but the flesh is weak.
In order to fight and overcome the feelings of despair, you have to focus and submit to the things of God. Looking at television programs, which are sexual or demonic, will result in you losing your focus. Also, associate with people that genuinely care for you. Keep away from people who would say, "Pull up your socks. God is punishing you because you must have done some terrible thing.