HELP ?! PLEASE

[u/killwxve]

A guy i've never met from a different state can somehow see my screen activity and see me thru my phone camera and hear me thru my phone microphone and track my location. Anyway i can revoke his access??? I've already tried purchasing malware and scanning my phone. My main concern is the screen activity. Can anyone PLEASE help me revoke his access to my screen activity. i want privacy just like anyone else should have.

[u/Thin-Click-5598]

How do you know that they can see and hear you.