I have studied General Psychology and am familiar with the psyche but science has its limits and is still in its infancy understanding the human mind and what makes us depressed and how to remedy it. They just haven't yet figured out that their roadblock to remedy discovery is actually the hole God put there for Himself. People, Godly people, wrestled with depression in the Bible and we do today. It is nothing to be ashamed of because in those dark reflections of ourselves is where we find ourselves and discover God in our lives. If you need medication take the medication but let God into those shadows and learn from Him. Remember that you are human and that you don't have to beat yourself up or loathe the person you have become. Think of it as a stop sign at an intersection; there is still more road either way you turn but you are just having to look before proceeding. Stay strong in the Lord, brothers and sisters, and this will soon pass.