Learning to use iron sights seems like the proper beginning, to me. Regardless, it does help when a person first starts in with handguns.
After tapping the rear sight to a proper sight-in location, carefully use the point of a knife to scribe an index mark on both sight and barrel. If it gets knocked out of alignment, it's then quite simple to get back near the proper sight-in before shooting.
You're from BATFE? Come right in! I use all your fine products!