The Potters lost for a third time in four matches on Saturday as they went down 1-0 at Craven Cottage.
"We only had ourselves to blame for losing," he told The Sentinel. "If you have most of the possession but don't take your chances or make the most of your play, then the least you should come away with is a point.
"It's tough to take, but we have to get going. It's all part of the process. It's a long season and we have to get better."
Stoke's next fixture is at home West Bromwich Albion on October 19 in the Premier League.