Willingness to learn is important, willingness to act on what you learn is critical. - Kevin Kelly
Can you recall your school days when completing homework used to give you greatest satisfaction? Every time you finished your work, you must have felt a sense of accomplishment, achievement and contentment, and after that, you were ready to play, hang out with a friend and do whatever you wanted to do.
Today, when you plan to work out an hour, and you do that it gives you a great delight, or when you complete even a small task like:
Completing anything brings a pleasure and sense of triumph or victory.
On the contrary, when you run away from challenges or don't complete your task due to any rationale or excuse, it just brings frustration, gloomy and discontentment. In turn, you start worrying about consequences. You may befool others by telling a lie, but you can never befool yourself.
He that is good for making excuses is seldom good for anything else. - Benjamin Franklin
Be extremely inflexible when it comes to completion of work. Choose to complete your work at any cost rather than making excuses. When you finish your work, firstly it benefits you and then it helps your organization. If you develop a wrong attitude, your company can always replace you with a better person, but you can't replace yourself.
To develop right outlook, ask yourself following questions:
This practice (completing your work) alone can change your career altogether. Make sure that you deliver the desired quality while meeting the given deadline.
I attribute my success to this - I never gave or took any excuse. - Florence Nightingale