yes, overwatering only slows down growth becuase your literally drowning your plant, but it'll be fine. your roots look fuzzy because when they aren't in soil/water it expands in an effort to reach for water. there's nothing to worry about... eventually it will turn into a nub stem
as for the fuzzy roots...theyr extremely healthy roots....fuzzy roots are usually the ones were after,which indicate high oxygen levels at the root level....nothing to worry about chum..