Learning the art of expressing gratitude will force you to focus on the positive.
Don't just read the easy stuff. You may be entertained by it, but you will never grow from it.
Don't take the casual approach to life. Casualness leads to casualties. Seek out the mentors that you need that will lead you to greatness in your field. If you're not willing to learn from others, who are you willing to learn from?
Finding is reserved for those who reach.
The least lack of discipline starts to erode our self-esteem.
If you want to have more, you must become more.