Focus on yourself:
*You may find the worst enemy or best friend in yourself.
*When you feel like giving up, remember why you held on for so long in the first place.
*Instead of giving myself reasons why I can't, I give myself reasons why I CAN.
*If G-d had wanted me otherwise, He would have created me otherwise.
*Sometimes you may feel Hashem is hard on you & doesn't love you... Truth is, He loves you too much to leave you the way you are.
*I am a great teacher, and my best student is myself.