First, call the health department.
Find out where the neighborhood clinics are.
These will be on sliding scale.
That, of course, means pay based on income.
Any teaching hospital will have a medical clinic that you can enroll in, and these are also on sliding scale.
This would also tie you into specialists if needed.
You can't just "try" lexapro, which would be extremely dangerous. For example, if you have hypothryoidism, this can cause all of your symptoms, and be dangerous if not treated with thyroid replacement.
So, assessment and labs are needed.
OK, so that is an initial answer….
Please use reply to expert if you have further questions. When you are ready, please click a positive rating [hopefully excellent]. If you forgot something, come back. I am here daily.