Self-discipline is the ability to make yourself do what you should do, when you should do it, whether you feel like it or not.
We most of the time don’t want to leave our comfort zone or actually the ‘Danger zone’ and instead come up with excuses and blame. In reality it’s the courage required to commit to the difficult schedule, doing uncomfortable actions which will definitely take us towards our goal. It requires ‘an iron will’ to be focused & own the responsibility for our actions. It’s the least price the person is paying for moving towards his own dream.