Willian is delighted with his present form for Chelsea.
Chelsea go to Swansea City tomorrow.
He said: "I know that we have lost against some teams we shouldn't have but the League is not over yet and nothing has been decided.
"We don't think like that. We have games left and the chance is still there for us to win it. It's important for us to get our heads up quickly."
Willian is determined to add to his three League goals to help Chelsea's cause, saying: "I feel like I have adapted well and I'm hoping to improve even further. I want to score more goals for the team but our main objective hasn't been achieved yet - to be champions."