With only a single goal throughout the season, the Dutchman lost his regular place on the starting line-up and was the shadow of his former self in the 2010-2011 season.
His luck, however, changed for the better when he was personally responsible for scoring the winner and seeing off Manchester United in Saturday's FA Cup clash, and netted another on Tuesday's 3-0 Premier League win over Wolves.
The 31-year-old feels that his confidence has returned, and will look forward to more first team opportunities.
"It's been difficult, I'm a player who has been used to playing every game," he told Mirror Football.
"But I've been playing more and more since the start of the year.
"If I'm not scoring goals, it doesn't bring me down. As I said, I'm the type of player who needs games in a row to feel comfortable and feel better.
"I've felt stronger, and for me it was just a matter of time before I scored again.
"Last season, when Kenny arrived, I played every game and scored more than 10 goals under him. This season, I have struggled a bit with scoring goals, but I'm sure if I keep playing like this I will score more goals."
With Luis Suarez's return after finally completing his eight-match FA ban, many fans will expect the Uruguay international to be at the head of the line on Monday night's clash with Tottenham.
His return will be a welcome sight to the Anfield crowd and provide the much-needed boost for Kenny Dalglish's men.
"It's going to be great to have Luis back. He provides a massive contribution to the team and has been a big loss for us because he is a massive player," Reds midfielder Jay Spearing explained.
"But we are a massive club and have a good squad behind us now. Andy [Carroll], Bellers [Craig Bellamy], Dirk and others have all shown exactly what they are capable of doing. The results we've had over the past week have brought the team closer together.
"We've always been a close-knit group and are starting to show that a lot more on the pitch.
"If we continue to play like we did at Wolves, we'll cause teams a lot of problems."