I have words to describe one of the worst states of being, in the iron grip of anxiety: I remember walking to the kitchen to do something routine, feeling like I was walking on stilts, leaning forward slightly. My physical vision was above my head. Thinking: I would certainly lose my balance and fall forward. Finally arriving (only seconds) to the kitchen - POOF! I forgot why I came. I stood frozen, trying to remember. This would repeat over and over, in somewhat different forms - for years. Thankfully, those kind of moments are behind me now.
Calming down is possible. Breath control, I have found, helps a lot. Also, the awareness that time keeps moving forward, moving to a point out of the realm of anxiety's grip. I can at least push it out of the spotlight. Mentally listing things that bring me happiness and/or pleasure and peace. Many of them are only in my childhood but, of course, just as relevant. ...I have come a long way, to where I am today. Detoxing from bad relationships was a big one. With that, I noticed improvement in short-term memories, better temperament, a sense of general well-being and the desire to self-care; being able to enjoy individual moments more - not 100% yet - but noticeably more. I hope these ideas help whomever may benefit :-D