Lifelong?

Do I have to be on this medication for the rest of my life? I didn't think it was that bad that I heard voices for over a year it was just taking an emotional toll. I don't really like the idea of being on a medication for the rest of my lifetime to be 'functioning'. I was functioning well just talking to myself and had some weird thoughts. The worst part is I don't even have a diagnosis, Psychotic disorder not otherwise specified. sorry this was kind if rant-y but is this a rest of my life thing?