May I suggest you use a professional service. Get the knife blade in shape and from then on use the "steel", and if really needed use the diamond or ceramic sticks.
OBTW the best way to keep a knife sharp includes, at least, wipe after every use, if not clean w/ soap and water. Never put a good knife in a dishwasher, never put it in the sink, never let it sit overnight dirty, and never use it for anything it was not designed for.
No opening mail, no craft projects, no hacking bones, prying up a stuck lid, etc.
Favorite Quote: "Time Flies Like an Arrow - Fruit Flies Like a Banana"