Deep relaxation, progressive relaxation, or meditation practices can also help. You can find some scripts on YouTube, I am told. Another way to approach that is to take a class, or a shrink can teach you.
You can put a drop of lavender oil on a handkerchief or cotton ball and sniff it occasionally.
I am really impressed with the things you are willing to try, and wish you the best of luck in your progress.
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A finger in every pie.