I've heard of that initial burst from many people.
After a break, return to the tape, but listen only once or twice for something that you want, and then get on with your life. A few weeks later, notice the results.
It seems to work best for things that you really want, but do not absolutely need. In other words, you can be completely happy the rest of your life with out it. When you want it too much, or when you really need it, you might cross the line from a positive expectancy to trying to force it--and the mind does not respond favorably to force.
Prosperity is one of my favorites.
