The Uruguayan hit a stunning hat-trick in the Reds' 6-3 win over Cardiff City on Saturday, a result which pushed the Merseysiders to within four points of league leaders Chelsea, who defeated Arsenal 6-0 in the early kick-off.
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"We are in a really good moment now," Suarez told Liverpool's official website.
"We know that in the last few games we have played very well and that's why I am so happy with this performance. We will keep calm, because we know the Premier League is so difficult.
"We'll keep going for the next game and all the focus will be on having a really good game against Sunderland.
"We knew the Chelsea result, but we focused and concentrated on our game. We knew that we had played very well in the last few games."
Suarez also admitted he had to apologise to Raheem Sterling following his hat-trick goal, with the winger screaming for a cut-back in the build-up to his strike.
"Maybe I could have tried for the pass to Raheem for the last goal,” he added.
"But I went for the hat-trick for my confidence. I apologised to Raheem. I am so happy with the match ball. I feel very good because Liverpool won the game. We are so happy with the performance today.
"It was an unbelievable match. It was like the result against Stoke City away from home, when it was 5-3. It's difficult when you score and then Cardiff score at the other end, but we played very well today and we'll keep going for next week."