When I was in my early 20s, I went through exactly the same thing as Bipolarist described. Exactly.
As the years progressed the fear of mind reading went away, but I was and still am very paranoid.

Even today I'm afraid that no one really likes me. Everyone is taking part in a larger plot to mess me up. Everyone is talking about me. Everyone is looking at me and thinking bad things.

I take an antipsychotic, but even with that I'm still very paranoid.