Trust your discipline. When all else fails, it is what you have, those habbits you have created will get you to the finish line. The habbits that replace the old self , and are facilitating the new you you are trying to become. Your standard of success, your hard work and your focus will see you through so long as you are willing to commit. It is essential you commit , have a daily journal where you document even your little successes, call it your task bites, and for each thing you accomplish, tick it off and celebrate it. Reward yourself this will encourage you to persevere more, to keep steering further, harder , with more intensity and more focus on your final outcome. believe in your potential, and activate a self that is committed to all the little steps that will get you there.