ENFJ with Generalised Anxiety Disorder. I count myself very lucky.
Triggers: work stress (if it tips beyond ~130% of my capacity), interpersonal conflict (thankfully rare), hormones
Frequency: I went from 2 panic attacks at night (that shock me awake) to about 2 panic attacks a month — if I'm unlucky! So I'm beyond blessed!
Things that helped me:
cutting out toxic friends who treat me like a emotional dumpster/ free therapist
stopped stressing about my grades in law school (crazy competitive Asian country, no A go home)
keeping my schedule packed so I don't have time to overthink my anxiety
EXERCISING!!
taking all my supplements
listening to music everyday (I didn't know how important this was to me)
counting my blessings every day
dispelling all my fears and doubts immediately, not giving it the opportunity to fester — Rani g to a loved one, then binning it for good
winding down with at least 1 hobby every single day — squats, facial, YouTube videos
I really enjoyed that /r/INTJ thread; it's such an important topic to discuss!