The tourists were beaten by 84 runs in Sydney on Sunday to bring an end to a disastrous trip across all formats Down Under.
However, Broad is confident that his side can bounce back ahead of next month's World Cup in Bangladesh.
"We have a two-week break at home, which will be good to get our minds off cricket," BBC Sport quotes him as saying.
"We have areas to improve, but we know we are a decent T20 side which has not performed in the last few weeks.
"If we can learn from this and push forward, we can do well in Bangladesh. We have been in Australia for 100 days, so it has been a long time."
England's preparations for the World Cup get underway with a short tour of the Caribbean on February 28.