Trying to live with my PTSD

Well, sitting here in class I'm starting to feel my PTSD act up and the symptoms of what I feel right now are: anxiety, difficulty breathing, shaking, racing mind, nervousness, feeling more emotional, and heart rate increasing... Idk what exactly is making my PTSD act up but I am trying to take notes on how I feel so I can recognize when it happens again and try to understand why it is happening. Usually when my PTSD is acting up I start to close up (push people away and trying to avoid others) tbh, I wish I never had PTSD but I do so the best thing I can do is try to live with it and learn to control it, anyway, the bell is about to go to end yet another day of school so to anyone reading this, thanks for reading and if u have any connections to PTSD or experiences, plz message me bc I would like to hear about them, thanks