Hi Chocolate sorry to hear you're having such a rough time, I can empathise I work in CAMHS and am seriously considering leaving, the amount of stress and pressure is really affecting my relationship with my dd and my dh, I have "mad sundays" because I'm so wound up and anxious about going to work on Monday I get really irritable and agitated.
With regards to practical help for panic, I'm part trained in CBT so here goes, ladyofwaffle was exactly right, trying to relax/deep breathe will actually prolong and intensify the attacj, any concsious focus on physical symptoms such as deep breathing will heighten the sensation and therefore the catasprophiv thoughts and therefore the appraisal and then the anxious arousal. That's a v potted version of about 3 sessions.
When in an attack the best thing you can do is just go with it and try to distract yourself with normalising activities. Also remember that although it's a horrible physical sensation it's actually a psychologocal symptom and it can't harm you.
When you're nit having an acute attack then take some time out to explore what the main issues that are affecting you are and practical "SMART" ways of addressing them.
I don't think there would be any adverse effect on your cv if you asked for an NHS CBY referral. But if you'd rather not you can try the www.babcp.com where you'll find a lsi of accredited local therapists. If that's what you'd like to pursue.
Thinking of you xxx