"Be in love with your life, every minute of it"
I think people spend so much time fantasising about what their life could be like and comparing their life to others', whether that's a friend's or celebrities, rather than actually enjoying their own! Before you know it, we'll all be 60 years old and thinking, damn why did I never do this or that.
Live a bit more in the now and enjoy it! You're probably a lot more fortunate than you think!