"What will happen with me now is that every time I have a bad game, people will mention my age, whereas before it was just a case of me having a bad game," he said.
"I look after myself very well. It's just that when things aren't going well for you, nothing goes well.
"Like against Chelsea, I thought I played well, but then I made a mistake at the end for the second goal. If I hadn't made that mistake, everyone would be saying I'd played well.
"That's what happens when things aren't quite going for you."
Carragher is happy to take the criticism on the chin. The 31 year-old suffered a similar dip in form at the start of Liverpool's stop-start season two seasons' ago and managed to get his game back on track.
"It happened to me before after the World Cup in 2006 when any mistake I made seemed to end up in the back of the net," he said.
"The best thing to do is try not to analyse it too much. You only end up beating yourself up over it. You've got to have confidence in your own ability and that you'll get back.
"I'm not playing well at the moment, I know that. It's up to me to turn that around. I've got the strength of character to put it right.
"The reason I've been here so long is because I can deal with it and have the character to do that."
Carragher is hoping to turn his performances around starting with Liverpool's Premier League contest with Sunderland on Saturday.
Liverpool are also hoping Steven Gerrard and Fernando Torres shake off minor adductor injuries to line up at the Stadium of Light.