I don't know if I'm paranoid or just highly aware

I feel as if I'm being watched and controlled. Like there is something inside computer just following me. I'm careful around people in real life and I constantly feel like they're tracking me and gathering information just to use it all against me humiliate me, abandoning me at the end. I can't trust anyone, and for years I've had trouble making friends because I'm skeptical of them. If a friend of mine says something that is normally deemed harmless, I'm quick to believe that they're threatening me or questioning my capabilities.

I've accused my loved ones of thinking lowly of me and having ill intentions towards me. I've started arguments by asking them what they meant by something they said or why they used a specific tone with me, and I always get called paranoid in the end. I admit I've had paranoid tendencies before, and sometimes I snap out of my thoughts way later and realize I've been thinking slightly irrationally.

I also have a tendency to think very highly of myself, like I'm genuinely an unstoppable visionary, and I'm the only one who can help this world become a better place to live. Like I should be the leader of everything.

I don't know if this is serious at all. I'm afraid to bring this up to my therapist as she might think I'm insane or something. I think I'm ruining my relationships but at the same time I feel like my suspicions are always justifiable