Hey, thanks for your message and letting me know. I'm really sorry to hear it's unplayable for you. These two issues are mostly problems with the engine and the interface of the game (there have been several struggles trying to get it working to this point). As I'm a solo dev, getting this fully working will take several months so, for now, please issue a refund. I will also remove self-voicing from the description so no-one else is disappointed. Accessibility is something that means a lot to me, so please look out in future for a potential fix as I'd like very much for you to be able to play the game.
I'm really glad you are even considering accessibility, because not many people do, and I really appreciate it. Also I fully understand that as a solo dev it is harder to make sure everything is working well. Sadly the only thing I can do is offer to be a voluntary playtester once you decide to make self voicing work better. Just curious, are you going to port it to ren-py 8 one day? Again thanks for consideration.