Nah, just keep it up.
If u re write u will get bored with "damn why am write this chapter and scene again" and then u drop it again saying i am tired or say u messed up the story or u became bored
so why not make another novel but keep this one at the same time its just that the story will be another version and keep making chapter of the 2 like this everyone will be happy and we got 2 story to read :)
i mean u could but how many chance is there that u go with it till the end would u do a rewrite again or finish it cause ur story are good its just we never see the end :'(
Keep it going and you could always have them go to a new world and stuff and have him posses limiters were he will always have the strength of his opponent so he will have to fight hard if their equal strength
Eierlyfire