Fear of psychosis/schizophrenia

For the past month I have had this terrible fear of developing psychosis/schizophrenia. I’ve literally started to feel like im seeing things from the corner of my eye. I went to the ER 2 weeks ago and they told me that i don’t have any concerning symptoms and it’s most likely my anxiety. I’m already on Lexapro for my anxiety but these thoughts won’t go away and my psychiatrist is thinking ocd. What can help this fear I have? I tend to google search all the time which usually relieves me temporarily but then later the fear starts all over again.