The England international has been a hit for United recently and scored two in the 3-2 win over AC Milan at the San Siro on Tuesday.
“It is not just me who has improved over the last few months,” he said. “The whole team has.
“We have been more consistent and got the results when it’s mattered. That has been another factor that has really helped my game.
“We didn’t play as well as we can in the first half last night and didn’t get some of the decisions we should have.
“But that can happen in European football away from home. I am sure other teams will look at this result and won’t really want to face us.”
“I have been working a lot on getting into the box a lot more, especially inside the six-yard box,” he continued.
“That is helping me to score goals, which gives me more confidence.
“I don’t know how far I can go with my scoring total this season.
“I am delighted to have scored two goals in such a big game, two headers as well. Hopefully I can keep it up.”