We all make mistakes. We have to fall so that God can help us up. I'm going through a similar thing where I'm continually getting knocked down and repeatedly having to get up, and it's starting to get tiresome. But recently, I realized, that is God's way of testing me. He will reward my patience and perseverance. He always does. Keep the hope, and take care of yourself. Go see a psychiatrist as soon as possible and let them know about the side effects you're having. I hope you feel better soon.

PS: This quote may help - "GOD HAS intention for your pain. A REASON for your struggle. AND A REWARD for your faithfulness. DON'T GIVE UP!" It always helps me have a little more hope