I've always heard that nothing in life is free. Living in a capitalistic society will definitely make you agree with that sentiment. However, there are a few things in life that are free. Joy is free. Love is free. Hope is free. Affection is free. When you are overwhelmed with life and adult responsibilities remember these lyrics by India Arie: 

It doesn't cost a thing to smile
You don't have to pay to laugh
You better thank God for that- India Arie

For your listening pleasure: https://www.youtube.com/watch?v=7NHjUEdiebE