Hopes of securing a record-extending fifth consecutive Premier League crown already look to have gone up in smoke given the way things have gone off the rails recently.
Sunday's crushing 2-1 derby defeat at home to neighbours United leaves City nine points behind leaders Liverpool, who have a game in hand on their title rivals.
Bruno Fernandes' late penalty cancelled out Josko Gvardiol's header at a shell-shocked Etihad Stadium, where Amad Diallo struck at the death as Guardiola oversaw an eighth loss in 11 matches.
"We are still nowhere near our level, but I still believe that we are playing good enough to get points and results," attacking midfielder Foden said.
"It's about remaining focused throughout the full 90 minutes, but we keep switching off at important times. We just need to get the focus right.
"We keep believing in the process and the manager - I'm sure if we do that we will get back to winning ways and get back to our level."
Phil Foden and Pep Guardiola embrace after Man City won their fourth straight EPL title in May. (AP PHOTO)
Guardiola committed his future to City by signing a new deal until 2027 during a rotten run that started with the League Cup exit at Tottenham on October 30.
That loss means they now have a free midweek to reflect and refresh before Saturday's tough-looking Premier League trip to Aston Villa.
"I can't put a finger on what's going on," Foden said.
"I thought the performance was more than good enough to get the result, but we come out with no points, and it seems to be the same story at the moment. We just have to stick together.
"In football there is always another opportunity to make it right."
City's trip to Villa at the weekend is followed by a Boxing Day game at home to Everton before rounding off 2024 away to Leicester City.
"We have to go again and show character to come back from this blip," Foden added.
"It's not a time for moaning - it's about sticking together, remaining strong and going again. I'm positive we are going to come back."
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