The Bluebirds' return to the Premier League has been a difficult one so far and, going into the clash at Wembley, the club are just one of three top-flight teams yet to taste victory this season.
Cardiff have picked up just two points from seven matches and sit 19th in the table, with four straight defeats putting the pressure on the English tactician's shoulders.
Next up is a difficult clash against Tottenham but Warnock, who is celebrating two years in charge of the Welsh outfit, is feeling optimistic ahead of the London encounter.
"I don't know how we didn't win last week, but that is life in the Premier League, you've just got to get on with it," he said at Friday's press conference.
"It was a positive performance other than the result and I thought once again the fans were superb. I'm sure we'll be filling our allocation at Wembley, because they have been pretty amazing away from home as well."