What is the way to get rid of the feeling a person has that those around him are reading his thoughts, and to what extent is it possible to overcome this feeling that affects his life and causes him intense fear that prevents him from leaving the house?

You have been afflicted with obsessive whispers (waswas) as a result of that, and they have taken hold of you, making you doubt those around you and changing your behavior. The cure for this is to adhere to the morning and evening remembrances (adhkar), frequently remember Allah, recite the Quran, humble yourself before Allah, and perform ruqyah (Islamic exorcism), while being wary of sorcerers and charlatans.