Removing ghost followers by country?

I ran a bot on my main account for a few months and it totally screwed up my demographics. My followers doubled but whereas before they were 90% from the USA now they are only about half from the USA and the other half from Brazil/India/Mexico. Is there a way to generate a list of my followers by country to try and remove the bulk of these followers? I'm not tech savy at all so please explain like I'm 5 if you can. Any help is appreciated.