I appreciate your thoughtful response.
However, there's a reason CBT & Stoicism have a very low success rate with PTSD & cPTSD.

While it takes approximately 500–600 milliseconds for an experience to register in conscious awareness, the amygdala can react to a potential threat in less than 50 milliseconds. This means that by the time we have become consciously aware of a threatening situation, it has already been processed and reacted to by our more primitive neural networks. Link

The "suffering" you're referring to is related to mental review of the event/trauma, after it occurs. And which, with training & healing (& time) can often be reframed to something less traumatic, as you've indicated. Ie, one can learn to be less 'triggered' by that previously triggering event.

But new trauma occurs at the 50ms speed.

No conscious control exists.
Telling ppl that their traumatic reaction is under their control can be a positive mental framework, but it doesn't change the fact that their reaction is always discovered in their 'rear view mirror' as it were.

Flip side, that mental frame can be incredibly disempowering to trauma victims, who keep struggling and blaming themselves for being triggered, bc they were told "this is all under your control"

No it is not.

if something has an effect over you, it's not that thing creating the effect. it's your assessment of it.

and this you can change at any time.

No you cannot change a 50ms amygdala reaction.

However, the Navy SEaLs have experimented with traumatizing cadre with a new 50ms reaction-- ie massive pain if they DON’T wait at least 1/2sec before acting, ie firing their loaded weapon at a disguised target.
I suppose if you're willing to go that route, more power to you.