Recently a management student asked us (a panel, I was part of), ‘How do we develop the right attitude?’ Some of these were discussed. This is a good list.
As I had shared with the student, I would also suggest,

1. Meditate
2. Physical Fitness
3. Be part of an NGO or be regular in any philanthropic activity ( not mere ‘chequebook philanthropy!)
4. Focus on one hobby – music, painting, gardening, etc., and be very good at it (not to become a great musician or painter in the eyes of the world, but just ‘BE’ good at it!)

8 Ways to Improve Your Attitude | Inc.com