bubbles,
Oh my sweetie, big breath and know you are not losing your mind even thow it may feel like it. (((((((((((Hugs)))))))))))
There are no magic bullets but many people find medications helpful. I would certainly give the Lexapro a try. Remember these meds may take 6-8 weeks for the full therapeutic effect but you should start to notice some improvement before that.
I would also like to kindly suggest a therapist to help you learn ways to deal with your anxiety. I use both to deal with my anxiety and depression. I am a work in progress........even thow many days I can only take babysteps.
Try some self-help books as they helped me a lot. There are also many techniques you can try; deep muscle relaxation, deep breathing, meditation, yoga and many others.
You might also talk with your Dr. re having thyroid tests done? If your thyroid isn't functioning it may cause a great deal of anxiety.
A self help you may want to check out - The Anxiety and Phobia Workbook by Edmund J. Bourne (techniques and diet suggestions)
Take care and I look forward to talking with you more here in the forum.