OP I had this too for certain brief periods of time several years ago and managed to heal
I took Sertraline (zoloft) 200mg. This seemed to cause depersonalisation and akathisia in the first month I took it, which was horrible, but then I got a lot better
I've thought about the meaning and possible origins of the 'thought broadcasting' delusion.
This is what I think.
People ARE able to read your mind in the sense that your thoughts subtly condition your behaviour, and they see the way you behave and react to it. And if you're hypervigiliant about the ways your thoughts are affecting your behaviour, it can seem on a visceral level as if people are reacting directly to your thoughts.
The thing is, your thoughts are just not there if the contents of your thoughts is 'he can read my thoughts'. It will feel like he his reacting directly to you, and he is. But he isn't reacting to your thoughts. He's reacting to your body language, which is a result of your thoughts.
The best way I found to cope with this in the immediate term was to listen to the radio (or a podcast) and go for a walk.
You have to go for a walk while you listen to the radio/podcast because otherwise you might start getting delusions of reference, which I also got (i.e. 'the radio is talking about me!') When/if that happens, you just focus on the natural environment around you. Notice the shapes and arrangements of the flowers and leaves. Try to guess the species of the plants around you. Smell the smell of the trees, grass, car petrol, concrete… That should interrupted the psychotic thought process.
Good luck OP!