The Reds were held 2-2 by Birmingham City at Anfield last night.
Ngog told liverpoolfc.tv: "Every game is a must-win game. We know we have lost some games, so we have to have a winning mentality in each match.
"It's the little details. We had a good season last year and we know we have the quality to be much better. It is a difficult time but if we work hard and stay together we'll be okay.
"We aren't thinking about the title at this moment. All we have to focus on is each game. We don't think about the future at this stage."