During my adult life I have been a frequent flyer. After finishing high school, I moved to a city nearly 4 hours flight away to start university. That year was 2008. I had of course taken some long distance trips prior to leaving school, but there was a step change when I left home.
Did you remember to turn off the lights before leaving home? Did you cut your shower short this morning? While these issues are important in decreasing your carbon footprint, I argue that how you spend money is significantly more impactful.