Is not a stone a manual sharper?
It is just one of those things one must just dick around with. And find their own routine. I do best with a dry stone. And light to medium pressure.
Oil or wet I end up using too much pressure, cause I don't feel it cutting.
Could use a belt sander, angle grinder, that one most likely use for the lawn mower blade.
Ray or Elroy: wrote in a post lost when the server went tits up. This tip, hosed the stone down with WD cleans it, works well.
Don't give up