When you develop self-discipline, you have many beneficial results. These include a sense of accomplishment, more self-respect, and a better understanding of what you can do.
Discipline is not always easy, but it is well worth it. When you set goals and work on them every day until you accomplish the goal, you feel proud of yourself. Not only because you accomplished the goal, but because you did not quit. You stuck with your goals and made them happen. Think back to when you had a goal and worked on it every day until it was done. How did you feel?
When you discipline yourself to accomplish a goal, you also increase your self-respect. Think of the people you have the most respect for, and why you respect them. Chances are one of those reasons is that they have self-discipline. They set out to do something and they accomplish it.
By doing the same for yourself, you can have more respect for who you are as a person. When you do not use self-discipline, you will feel less respect for yourself. You will find that you have lower self-esteem as well, and are more likely to fall into negativity.
You learn more about what you can do. When you set goals and challenge yourself to meet them, you need to follow through with discipline, When you do that, you will find out that you can overcome obstacles that you might have thought were too difficult, You learn more about who you are and what you can accomplish when you set your mind to it.
A lot of times people put limitations on themselves that is not really accurate. Think about something you think is not possible. Is it really impossible or are you setting a limitation that is artificial? One way to find out is to set a goal and make it happen. Obviously, if you are a couch potato, you cannot immediately run a marathon, but over time as you build up your body with increasingly more intense exercise, you can.
Now it is your turn. Figure out a goal that you want to do, and set up milestones along the way. Then each day does something to make those milestones happen. It does not have to be anything major, just one more small step on the way to your final goal. When you reach that final goal, take stock of how you feel about yourself and what you are capable of doing.