Gibbs-White scored as Forest won 3-0 at Anfield yesterday.
He told Premier League Productions: "I didn't expect it but it's happened.
"I'm out there trying to help the team as much as possible. I thought the boys were brilliant today. Delighted we got the three points but I hope we're out of the relegation zone.
"We felt comfortable even though we didn't have the ball. We were defensively secure and that's credit to the boys and the manager. Delighted to get another goal but we got a clean sheet and three points at Anfield, which is an incredible thing."
Gibbs-White added: "They're still a great team with incredible individuals.
"When you're in a tough patch, we know it's hard to get out of it. We knew we'd have a chance and it was about us being solid and taking our chance when we got it."