Make a soldier or sailer course around the boarder. You’ll still have to make cuts in the field where they meet the soldiers though. This can not be done without cuts or doing what you did. Square pegs don’t fit in round holes.
In subreddit r/stonemasonry
In a post titled:
My wife doesn't like the way I cut out the driveway for the pavers but also didn't want cut stones. What do you suggest? Also I'm just a homeowner doing this himself.