I suffered with severe pp anxiety for over a year, I tried therapy and lifestyle changes but absolutely nothing worked. I finally gave in and started taking lexapro and it changed my life, I wasn’t living in constant fear and my thoughts didn’t control me anymore. I had to wean off in the third trimester but I started taking it immediately after my new baby was born. Don’t be afraid to try it, it was the best decision I made!
You can try therapy. They'll give you good techniques you can use. When I wasn't on medication and felt my anxiety coming really strong I used to say the alphabet backwards in my head.