Whenever I'm asked if the Jewish holidays are coming early or late this year, I promptly answer that they'll be coming on time. And that's partially true. Rosh Hashanah will always arrive on the first day of the Jewish month of Tishrei just as Hanukkah will always begin on the 25th of Kislev.
Growing up in rural Massachusetts, Judaism held a much different context in my life than it does now. Until college, I did Judaism, mimicking the motions of being a "good Jew." I didn't combine milk and meat in my house because my father told me not to.