Hello aq: I'm sorry you had this difficult experience. Hopefully coming here to PC can be of some comfort & support. I see this is your first post. So... welcome to Psych Central. There is a sub-forum dedicated to the subject of cPTSD. Here's a link just in case you haven't already found it:

https://forums.psychcentral.com/complex-ptsd/

And then here are links to some articles, from Psych Central's archives, that (hopefully) may be of some help:

What Triggers You?

Coping with Flashbacks

Complex PTSD | Psychotherapy Matters

9 Ways to Reduce Anxiety Right Here, Right Now

https://psychcentral.com/lib/15-smal...dium=popular17

https://psychcentral.com/lib/top-10-...s-for-anxiety/

I hope you find PC to be of benefit.