Should I switch from dub to sub?

Starting watching My Hero Academia (dub) which is the first anime I've watched, about a month ago, and thinking of switching to sub. Should I and if I do, should I rewatch the entire series (a couples episodes into S4) or just keep watching but in sub. Thanks

depends on the show really I usually watched everything subbed but some shows works either way

I think the voice acting in sub is way better than dub.

Once i start seeing anime in whatever version I have to finished in same version.
But sub makes the anime better