"I have these truly beautiful ideas and they just sit, inert, inside of my mind.
....But I stall out. I tell myself to wait for something and then leave it."
I too am a crystal clear INTJ. I would assume that it is because you are doing exactly what you want to do which is to generate "beautiful ideas...inside your mind." That in and of itself is what satisfies many INTJ's. You must develop ANOTHER motivation to put the ideas into action. If you want money, you must develop and constantly reinforce the motivation for whatever it is that you want the money for.
Additionally, you must get motivated by the goal of a "successful" blog, not a "perfect" blog.
Stephen
Power-Book Library: Free personal development, success, inspiration and motivational classics Personality and Growth Bookshelf