Success and happiness depend as much on your attitude as on your resources and advantages. Develop the right mindset,  and keep these thoughts in mind:

1. Control. Ultimately the only control you have in life is over yourself: your thoughts, actions, responses, and behaviors. Don’t obsess over what you can’t control; concentrate on what you can. 
2. Results. It’s easy to fall into routines and patterns that emphasize the process instead of the outcome. Learn the rules, but apply them with an eye on what you want to achieve. 
3. Gratitude. You’ll stay positive if you remind yourself of what you already possess. Spend some time every day thinking about your health, your family and friends, and the advantages you have, instead of focusing single-mindedly on what you lack.

Find your own “right” attitude (and perhaps a favorite quote) and live by it. I believe that my cat Peggy (or Ms. Peg when I way trying to cajole her) had her own quote, I am guessing but suspect it was, “She’s not the boss of me, I am my own cat!” and she had attitude to back it up. I had to respect that. Way down deep, we’re all motivated by the same urges. Cats have the courage to live by them. –Jim Davis (Garfield creator)