someone please help. anxious 24/7.

I have been diagnosed with GAD since I was 16. I am 30 now. However the last few years the anxiety has really kicked up. BUT lately as in the past couple months it’s 24/7. I can’t think straight. My heart is constantly pounding. Thoughts constantly racing. Feeling like doom is impending at every second. Im not sleeping. I get to sleep ok once I take all my night medications, they calm my brain for 30 minutes so I can fall asleep but then I’m up throughout the night with instant anxiety as soon as I wake up. Yes I take other meds too and plenty of them. I am under the guidance of a psychiatrist but I feel like she’s not understanding the seriousness of what’s going on. What else can I do? It’s making me not want to live anymore. I’m sick to my stomach