The manager told the club's website: "It was a really difficult result to take. The reality is to concede two own goals so early in the game made things nearly impossible.
"I did think that the second half we came out with a good attitude and good bravery but we needed that goal.
"When you want to win so much, and you concede two own goals, I felt psychologically we lost a bit of confidence and our normal arrogance in our play."
Everton will play Manchester City next weekend.