You will get better! Clearing out the parasites will stop the toxins. I think toxins are the blame for your depression. They irritate the central nervous system which can trigger anxiety, mood swings, depression and panic attacks.
If you eat whole, natural foods with no chemicals and you feel better - then you can just about be certain that toxins in food add to your overload. Try eating foods with no added chemicals and see if you feel better. A plin liver flush will help too - it will cause the liver to dump out toxins.