So sorry you’re trapped at work with a screamer and can’t shake loose yet. Do keep reminding yourself that it’s not forever, and keep working on strategies for your eventual escape! You certainly want to stay productive, for your own sake, and you don’t want to start acting out your anger – that’s easy enough to do when you’re feeling stuck like this.
Other general suggestions that probably won’t come as a surprise to you: it really helps to lean on the support of friends, family and coaches (as long as you don’t become a broken record, of course! …in which case, you’ll need to transfer to a therapist or paid coach!)
Also, try to design your day so that there’s limited contact, if at all possible.
This might also be a good time to join a walking group or some other exercise support group effort.
Getting a therapeutic massage as often as you have the time and money for could be a real godsend.
And Mary Sise’s EFT tapping protocol video could be just the ticket to help you cope with the day-to-day craziness, too.
As for additional guided imagery of mine, I’d try the Relieve Stress (it has a Walking Meditation that might be especially useful) and the Healthful Sleep one. These will allow you to approach this stress indirectly, and they could have a nice, incremental effect. And any relaxation imagery will be good for your hypertension, so don’t worry about losing that benefit if you substitute one of these for your Cardiac/High BP imagery. And if you eventually get sick of those, you might find the brief segments on the Panic Attack imagery to be very helpful as needed.
I hope this helps. Wishing you all the best. Hang in there!