Bent squandered two gilt-edged chances to seal victory for England after netting in the previous three internationals.
He said: "Unfortunately it was one of those days. But I won't think about it. I'll just get on with it and look forward to next season.
"I think it's probably a sign of me developing into a top player. As strikers you're always going to miss chances.
"Before, if I missed a chance I couldn't sleep for a week until the next game came.
"But now I put it to one side, it's the end of the season and the next time a chance comes, I'll bury it."