How do I spend the rest of my life coping with my mental health?

My anxiety issues are so bad. I’ve been like this since I was 11 or so. I am literally anxious 24/7. I wake up in the middle of the night freaking out all the time. This week has been especially terrible – it’s only Wednesday in the middle of the night and I’ve had three panic attacks this week already. I’m on lexapro but I don’t think it’s doing anything for me. I’ve been trying to find new psychiatrists, but I haven’t had any luck. It’s hard not to feel hopeless sometimes, because I get lost in the cycle of thinking that I will be this way forever and that scares me so bad. I feel like my anxiety has taken over my whole entire personality and I’m losing who I am.