Every goal is going to have its challenges and obstacles. The more you can figure out what those obstacles will be and where they might come in, the more you can prepare and be ready to handle them. I make that commitment ahead of time. If worse comes to worse, I may even have to do it on a treadmill. If I didn't make that commitment, which is necessary to my goal, then it would be very difficult to get myself out the door on Sundays when I felt tired or the weather was horrible.
Obstacles usually come in the form of commitments, sacrifices and good decisions.
You'll make it easy on yourself by planning these out ahead of time rather than being confronted by them unexpectedly and having to make decisions on the spot. V. Identify Sources of Motivation, Inspiration and Support for Your Goal. A goal needs to be constantly fed with motivation, inspiration and support, and it's up to you to keep this up. Don't sit around and wait for the world to motivate you. Try to identify the things that get you fired up about your goal.