When you are not disciplined, you know only one part of the equation: immediate gratification (our desire to experience pleasure or fulfillment without delay).

But delayed gratification (resistance to the temptation of an immediate reward in preference for a later reward) is so much better in the long turn. 

If you don’t know your reward yet, and you simply have no relevant experience to get to like self-discipline, leverage what you know.

For example: if you don't know what abundance means, because you have never experienced it, you probably know what financial struggles mean. Work from there.

Visualize and taste the fruits of self-discipline.
What could you have achieved if you work hard every day? How well your life would have looked? Would that be enough for you to put yourself together today to achieve a better future?

You do what you have to. If self-discipline is an option for you, it will remain an option forever. Fix your personal philosophy.

You won’t have a habit if you don’t show up every day.

Your self-discipline has its root in your habits. They make us who we are. And changing one’s habits is the most reliable way to change yourself and your life.

Developing self-discipline via daily habits is so natural. If you have something to do every day, excuses and procrastination won’t have much power.