I feel like I'm destined to die...

I know this is crazy and irrational but that's just how anxiety works. I have an irrational fear of dying, always, in ever circumstance. When I'm driving I'm a wreck I'm terrified of dying in an accident, when I get a pain from cysts or ovulating or my period I just get an overwhelming feeling that I'm goin to die. This is no way to live. I see a therapist weekly and I don't know what to do anymore. I've tried every medicine under the sun to help and to ease my fear. The only medicines that have worked just make me fall asleep within 30 minutes...which is great at night when I'm thinking too much to sleep but what about the day....what's suppose to help me then? I have to work (and even that's a struggle) any suggestions are welcomed:/ i don't know how much longer I can take this...