Okay, this is from your lovely neighborhood religious fundamentalist nut job. God gave us brains that sometimes get goofed like ever other part of the body can. He also gave the doctors and scientists brains to help with those goofs.
No one tells someone they won't need glasses and they will have 20/20 vision is they believe harder. No (sane) person tells someone to pray harder for their body to suddenly produce insulin. No one tells you a broken bone will magically heal itself if you go to church more. If you are depressed or anxious, seek medical help. Get help through a doctor. There is nothing wrong with seeking help. If you are religious it doesn't diminish your faith. If you aren't religious, then why are you even listening to them.
If they still bother you, tell them to take off their glasses and drive home. (Unless they don't wear glasses cause that would be weird.)
I have been on antidepressants and anti anxiety medications in the past. If you need them, you get them.
If you need to talk, I am around.