How do you deal with all this anxiety?!

I'm 34 weeks 4 days and I'm dealing with the worst anxiety. No matter what I do, I cannot shake these terrible intrusive thoughts of something terrible happening to me, the baby, my son, my husband, etc. I remember having anxiety with my son, but this time feels 10 times stronger. My heart will race, I'll get dizzy, and It just spirals into this terrible cycle. I'm on Buspar for it (category B) and it doesn't seem to be doing anything now in my final weeks of pregnancy. Also, my fears of labor and delivery are back with a vengeance! Anyone else?? 😩