Jesus can help you. Have you read the scripture that says, "Is there anything too hard for God?
"Whom resist stedfast in the faith, knowing that the same afflictions are accomplished in your brethren that are in the world. Jeremiah 32:27
And Jesus said unto the centurion, Go thy way; and as thou hast believed, so be it done unto thee. And his servant was healed in the selfsame hour. Matthew 8:13
There are also other things that you have to consider that could cause this depression. What are you eating? What are you watching on TV and listening to? What kind of company are you keeping? How much sleep are you getting? Do you have faith in Jesus and how much time to you spend in prayer, and in studying the Bible and have you forgiven those who have hurt you ? Satan cannot dwell where God dwells. The death, resurrection and ascension of Jesus Christ is what hope is all about.
God never said the Christian walk would be easy. But He did say, that if you search for Him with your whole heart, you will find him. God did say, that He would not leave you orphaned. So that means their is healing from Jesus. How will this manifest itself, I haven't a clue. But please trust and wait on the Lord.
I do know that a lot of our foods are missing the main nutrients to keep our minds and bodies healthy because of shipped Genetically Altered Foods and seeds across the globe. So check out and see what trace minerals and vitamins you are missing in your diet.
The world is more depressed now than in any time in history. Much of it has to do with a falling away from Jesus, then the garbage we consume called food.
I pray this helps. Get your parents in on the dietary part and see how they can help you heal from this crippling disease.