throughout life...
As we grow up,
we learn that the 1 person that wasn't supposed to ever let you down probably will.
You will have your heart broken more than once and it's harder every time.
You'll break hearts too, so remember how it felt when yours was broken.
You'll fight with your best friend.
You'll cry because time is passing too fast and you'll eventually lose someone you love.
So take too many pictures, laugh too much and love like you've never been hurt because every 60 seconds you spend upset is 1 minute of happiness that you'll never get back.