You need to establish your goals. Perhaps you are too much of a perfectionist who thinks that something needs to be done perfectly or not at all...and inevitably, that will lead you to do nothing at all! I used to be a perfectionst, in some ways, I still am, but in the past, it has hindered me more, because I would not be so productive.
Just do it!
The most important thing, I think, is to be patient and persistent. There are times when I just got fed up things and the enthusiasm withered for a moment. But you have to persist, or just force yourself to make the initial move and take that step--
Just do it and keep going..eventually you will build momentum. Keep pushing and remember why you are doing what you are and what you want to achieve.
If you follow your feelings, it will bring you down. Force yourself.
It has to come from within...no amount of motivational comments can make a real difference to your desire...you've heard the saying "you can only lead a horse to water.."
Anakin