"With our batting line-up that we've got I feel like I can play a lot more freer", she said.
Desperate to regain the trophy they lost two years ago, the Aussies dominated their opponents with young allrounder Ashleigh Gardner the hero as she claimed 3-22 to help bowl England out for just 105.
After Australia also lost Healy's opening partner Beth Mooney for 14 runs, first drop Ashleigh Gardner (unbeaten at 33) and Captain Meg Lanning (unbeaten at 28) joined forces and made a crucial 62-run knock for the third wicket to help their side reach the target with almost five overs to spare.
"We probably didn't have the best day in the field".
Apart from the disappointment of losing to the Caribbean side in the previous Women's World T20 event, Australia also failed to reach the final of the Women's World Cup past year in England, which was won by the host nation who defeated India in the final at Lord's. She gave us a chance - well, not a chance, but she bowled brilliantly, I thought.
England faltered with the bat after winning the toss, struggling to 105 all out in 19.4 overs with opener Danielle Wyatt (43) being the top-scorer.
Australia wins fourth World Twenty20 crown
Wareham was involved in nearly everything, including producing a brilliant run out of Amy Jones (4) in the fifth over. The group embraced it and it was a very satisfying win.
England reached the mid-point of their innings on 57 for three with Wyatt and Knight at bat, but the pair could only muster a 23-run partnership as the former was caught at cover.
But Lanning and Gardner kept the scoreboard ticking over and the run-rate in check, both peppering the boundary.
Lanning, who hit the winning run, said being outplayed by India did not affect the team's morale heading into the knock-outs. Kirstie Gordon has been a real find and Sophia Dunkley as well.
Knight said after the game: "Danielle Wyatt started brilliantly".
It was a easy win for Australia team as they got the target of just 106 runs.
"So for us to continue the way we've been going and have such incredible support from CA, the public and family and friends is awesome".More news: Baker Mayfield has career day for Cleveland Browns, highlights, Twitter reacts
More news: Mississippi Senate candidates make final pitches
More news: Wikileaks Calls for The Guardian 'Editor's Head', After Assange/Manafort Bombshell Story Breaks