Exploring and practicing mindfulness can create new perspectives and bring joy and peace. As a couple of places to start that is highly accessible and requires nothing but your curiosity:
For the 18 to 28 crowd, consider exploring The Mindful Twentysomething by Holly Rogers.
For those wanting a bit more spirituality to discover mindfulness also consider The Untethered Soul by Michael Singer along with his audio lectures and 8 part audio course.
Mindfulness is growing in western culture and has been practiced for thousands of years in eastern and other cultures. For those looking to calm that voice inside all of our heads and become more fulfilled consider exploring mindfulness. The benefits to you personally and humanity are enormous. Give it a try!