Fleet have been superb since the former Weymouth and Dagenham manager took charge.
It even looked like they might repeat what they did last season and make the top seven but they have fallen just short.
A 1-0 defeat at home to Dover on Easter Monday confirmed it and Hill says it wasn’t for the want of trying.
“When I came in November we were four points off relegation,” he told Radio Kent. “The squad had a lot of quality players and has still got a lot of quality players.
“We’ve had to work on and off the pitch collectively, sensibly.
“We have gone from underachieving in November to overachieving in April.
“To be going into the last week of the season and being three points off the play-offs, is all credit to everybody.
“Certainly the playing squad and everybody at the football club.”
He didn’t want to end a difficult season with a home defeat to a rival but Hill said: “They got the goal and we knew from then on it was going to be a battle and we tried to change one or two things.
“But I have no complaints over the 90 minutes. Some you win and some you lose and it was their day today.”