((Moreta)) - sorry your anxiety is at its peak. Are you under a doctors care for stopping this med? Some meds need to be tapered off slowly. There are self help tricks like slow deep breathing but its hard to get results if you're super anxious.
I've heard good things about Bach Rescue Remedy but its best to let your doctor know about anything new you take, especially if you're trying to conceive. I'll leave you a link and best of luck with having a baby.
The Original Bach Flower Remedies - www.BachFlower.com