Sometimes, an accent just doesn't go well with a language you are trying to speak. This means that the accent is probably going to go bye-bye. Except losing an accent is really hard. Gaining one is easier but losing one takes lots and lots of time with complicated techniques along the way to remove the accent. This is treacherous work and sometimes people don't even know how.
So how can I remove my accent as much as possible, if not all? This is not a duplicate as this asks the complete opposite question of the linked question.