Lukaku, who is on a season-long loan from Chelsea, was part of the Toffees side that beat the visiting Blues 1-0 at Goodison Park but admitted he had no mixed feelings regarding the result.
"It was a great win on Saturday and a great performance. I'm very happy we won," he said.
"It was a good solution to come to Everton and I felt a lot of confidence with the manager. I want to do better than I did last year, learn new things and help my new teammates.
"It was my choice to go out on loan. I want to play as much as possible. I have set a goals target for this season - but I'm keeping it personal."