Hi brother,
My heart goes out for you. It's difficult to live with disabilities. The fact that you are asking for prayer and acknowledge that God can help demonstrates that you have faith in Him. Keep praying and never lose sight of Christ who is faithful and tested in every way as we are.
I respecfully offer a different opinion regarding your statement, "medications can't help me". Medications often can help. They may not cure a mental disability, but they may offer a benefit. If your doctor is not working, try another one until the right medicine or combination is obtained that helps you. I takes two pills every day. This medicine does not cure my condition but the benefits exceed the side affects.
Finally, Christ is the ultimate in this life. You seem to know this by your post. He came to seek and save the lost (sinners such as us). He offers forgiveness and hope beyond this life. His blood is the only medicine that offers cleansing and forgiven of our sins. Jesus said, "25 Jesus said to her, “I am the resurrection and the life. Whoever believes [ongoing faith] in me, though he die, yet shall he live" John 11:25
I'll try to remember to lift you up in prayer today.
In Christ!