I used to 'go with the flow'. My days where full of things I didn't have to do, or shouldn't do. Time would go really fast because I thought I had no time for the things that where really import.
These days I work on growing and achieving my life purpose, so I basically plan everyday. I use my time quite efficient (although it could still improve). Time is going less fast now, because I use it efficient almost all of the time.
So I think that wherever I use my time efficient, time isn't going that fast