I had to confess my sins. It might be impractical and you may be like job from the Bible, but I was dealing with Anxiety and I had to confess what I knew I did that was wrong. Have you not forgiven someone? Have you been fighting with someone? Are you obeying the laws of the land? You may not have sinned. But for me, When I had a breakdown in my health and my mental health, it was from not confessed and dealt with sin. Consider this, there are a lot of articles out there, and I recommend reading them on Christian Advice on anxiety.
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