Talk to your doctor. Tell them meditation doesn’t help all the time. I’ve suffered from severe panic attacks for most of my life. What helped me most is medication (but I wouldn’t turn to this first). I take an SSRI daily for the low level anxiety that’s always there and then a beta blocker (blood pressure med) for panic attacks. In the past I was prescribed benzos for panic attacks. I would try to avoid taking them but there is no shame if that’s what you end up needing.

I would first try the route of therapy, exercise and making sure to eat well. And get good quality sleep. Hope things get easier for you soon!