This does not mean you will not falter or temporarily go off course. That is human. That is normal. But commit completely to the goal. You can do it.
Success is just around the corner.
Keep that image in your mind. You will be a better person for it. A great Master once asked one of his gifted students to encourage his fellow classmates to pursue not only their academic studies but also their spiritual studies - so that they may learn the importance of improving their character and practicing good deeds. The student replied that his schedule was too full and he couldn't possibly do it. Then, he looked at the Master and realized that the Master's schedule was far busier than his own.