"Confidence is okay. We know we have the ability to win every game but sometimes you are unlucky," said the Dutchman.
"This is football. We just have to keep going and look forward.
"We dropped points that we didn't want to drop - because if you are Liverpool you want to win every game - but there is no time to stand still and think about things.
"We showed against Everton on Sunday that we were the better team but sometimes we have to kill the game and we know we can.
"I'm sure it will come, it came before. Sometimes you are unlucky and the next time you will be lucky.
"We are still in the FA Cup, we are still near the top of the league and we are still in the Champions League so we are doing very well and we have to stay positive."