Yep, kiddo, been there and still go there once in a while. I'm so sorry you are experiencing this.
Several recommendations: Walk, walk, walk - even in little 10 minute sessions - walk with a purpose and deep breathe.
There is a self-help program called Attacking Anxiety by Lucinda Bassett. It's fairly expensive, but cheaper than out of pocket counseling that may or may not help - this from a psych nurse. I've found that cognitive therapy for anxiety tends to be most effective and the tools are with you all the time. Look up online and see what you think. Of course is a very individual choice.
The next to last suggestion is the one that has worked for me - I haven't used the Attacking Anxiety program - but have seen it help others - is a med called Propranolol. It's a blood pressure med - not commonly used for that, though, as it's more helpful to PTSD - Post Traumatic Stress Disorder clients. You might want to research it and talk to your doctor about it.
The last is most helpful to me - my faith. It helps to know that I am not the center of the universe - and I'm not in charge of everything or everyone. I know - it sounds simple and for me it really is that simple. Trust. It's key - and has taken me decades to learn that simple truth.
I wish you well - and hope I have helped -or at least given you food for thought...............
Blessings ,
deidrasue