Hill claimed his players were on a high ahead of their first-round tie at Sky Bet Championship side Doncaster thanks to a comprehensive 3-0 opening-day win.
"It's important I keep the players bouncing with respect to the mental energy and the composure they showed (against Hartlepool)," he said.
"If we hadn't won that game against Hartlepool then we're going into Tuesday with a little bit of negativity, but now we're going into the game with belief and we're going striding into it - that's what's important for me with having such a young squad."
He added: "We're well prepared. We know about Doncaster, but we also know our own game.
"Our players know our own game inside out and that's more important than what we know about the opposition.
"We don't want to drown the players with too much information on the opposition, but we want to keep the confidence high going into the next game without it being arrogant."