I’ve found it helpful in dealing with other
people, I had a situation where someone I had just met was triggered (I think it was a flashback situation as we spoke a little about it afterwards) and I focused on using the idea’s of getting someone from “fight and flight” to “safe and social” by talking in a calm voice, using eye contact in a safe way. I think if I hadn’t recently been reading about it I really would have been at a loss to know what to do in that situation.
I think I find it more difficult to apply to myself (as with most things I think it’s easier to read interpersonal relationships). But, the idea of moving up through the states and how you can do that is I think quite helpful, even if it’s very reminiscent of self care/other ideas you’ve probably heard before.