Things like practicing gratitude can be life-changing. It's those small lifestyle changes that can help you reach your goals in life. All it really takes is making a small shift, a small change in your daily routine to bring some positivity and healthy influence to your life.
Don’t expect to see positive changes in your life if you surround yourself with negative people. Don’t give part-time people a full-time position in your life. Know your value and what you have to offer, and never settle for anything less than what you deserve. - via: http://www.marcandangel.com/2012/05/23/14-rules-for-being-you/