khalid fayz's Key Ideas from Psychology of Success
by Denis Waitley, Ph.D.

The first half of self-discipline is persistence—the ability to go on despite opposition, setbacks, and occasional doubts. Persistence is a never-say-die attitude a determination to succeed

, “Character consists of what you do on the third and fourth tries.” In other words, keep working toward your goal even if you don’t have success on the first or second try. Don’t give up.

The second part of self-discipline is self-determination. Self determination means determining the path your life travels. Some people believe that fate, luck, or some other force outside their control shapes the outcome of their lives. People who feel that life is determined by chance circumstances or by being in the right place at the right time are more likely to doubt and fear their future than people who know they are in control. 

No matter who you are, you are in charge of where you are right now and where you go from here. Ask yourself, “Am I steering my own ship, or am I a victim of fate?” Are you doing things in life because you want to do them or because you feel they have been forced upon you? If you allow yourself to be pressured into doing things that you would rather not do, you may be giving up control of your life to other people

One excellent way to increase your self-discipline is to learn and practice impulse control. An impulse is a sudden wish or feeling that can lead to unplanned and unwise actions.

We all do things on impulse. We might buy a magazine, go to the movies, or take a day trip just because we suddenly feel like it. Acting on impulse once in a while is relatively harmless. When impulses guide our behavior too often, however, we lose the ability to plan for the future. If we get in the habit of following our impulses, we can even do self- destructive things that we will regret later