Potter will hope West Ham can bounce back from these defeats when they begin their Carabao Cup campaign on Tuesday away to Wolves.
The ex-Brighton head coach added: "You're under pressure all the time in these jobs, in this situation, that's how it is. I know the territory, I know what comes with poor results, and I accept my responsibility. I don't want to say it's a lack of fight because I know the players care and I know the players desperately want to do well."