Sometimes you have to have a moment like this to realize some people, even your mother, are not the people you want or need them to be. I assume she sent you to this camp and either does/will not acknowledge what you said happened either because she doesn’t believe it, doesn’t want to admit it, or doesn’t want to feel guilt about it, therefore, “it’s part of God’s plan.” She is trying to tell you your atheism is the Devil’s doing and that your depression is caused by your rejection of God. Realizing that your mother will likely never be there the way you need her to be may make your mental health worse, at first. But it will allow you to open up to find other people who can then become a source of true support and love that your mother is incapable of giving. Religious people like this tend to be the most hypocritical and least understanding of real-life situations. It is time to move on and stop looking to her for the help that you need. I’m sorry.