Hello Smiles007: Well... I don't know as I have much of anything new-&-different to offer in the way of techniques for coming down & feeling at peace. I tend to be of the opinion that there are no secret remedies... nothing you haven't heard of before... probably more than once... get plenty of exercise, meditate, avoid caffeine, etc.

And, of course, there are psych med's one can take for anxiety.
From what you wrote, it sounds as though your anxiety is telling you the job situation you're in is simply not going to work out for you long term. Yes, you're correct that leaving this new position so soon will not enhance your resume. It would be much better if you could stay where you are for a year or two... or more. But is that realistic given that you're already experiencing escalating anxiety, not sleeping, & needing to seek counseling? Leaving your present job so soon may not look good on your resume. But getting fired (even through no fault of your own) or having a nervous breakdown will be worse yet.
I hate to say it. But, from what you wrote, it sounds to me as though the writing may be on the wall, so to speak. The best option may be to begin seeking alternative employment opportunities. Realistically, this may take a while I would presume. And if things improve at your present place of employment, you can always change your mind. Nowadays in particular, it seems, it never hurts to keep your options open.