What lies behind us, and what lies before us are tiny matters compared to what lies within us.
Ralph Waldo Emerson
On Rosh Hashana we don't mention sin nor do we talk about our plans to improve our deeds in the future. Rosh Hashana is about NOW. Here is a shiur explaining the avoda of the day. When I saw the quote from Ralphie I thought it fit in beautifully. See also Taly's uplifting and enlightening Dvar Torah from this past week.
PS - An observation: Why is it that on Labor Day people don't work. Shouldn't it be the day when people do work? If a day would be called "Vacation Day" and everybody would go to work as always, wouldn't that be weird?!