Definitely talk to your doctor about changing meds, but DO NOT begin to ween off your current medications without the doctor's knowledge. Some of these things require careful monitoring.
To answer your questions, however:
No, you cannot hurt someone with your thoughts.
No, you cannot hear other's thoughts.
These voices cannot hurt you unless you let yourself believe them and hurt yourself. But you do not want to let them continue and risk getting to that point. You need to call your doctor and therapist immediately and make an appointment so you can switch medications.
I don't see how u could hurt others with internal thoughts if that's what u are trying go say. But it does sound like u need a professional to access u and the best course of action. Best wishes.