Heres what worls.

GABA. BillieJ Sahleys protocol. Read her small books.
David Bercelis TRE. Its a safe, simple, stand alone self help modality. You can learn from his book. Or you can find a teacher.
Kundalini yoga. Neurogenic yoga. Any hatha yoga.
Meditation. 9
Stable blood sugar.
Avoidance of stimulants. Especially you want to avoid raising norepinephrine and epinephrine. Allergies and skipping meals, and coffee and cigarettes all do this.
Cardiovascular conditioning will make you resistant to episodes and freakouts and triggers.
Ive had good results from a vata balancing diet and martial.arts training.

As a pharmacist, you have some backgound in human physiology. Read StevenPorges Polyvagal Theory. Learn the physiology of trauma. Learn how to bring your body back to peacetime physiology.