From what I have read on this site and others, I think what you are feeling is common to adult learning any foreign language. Several months ago I was spending so much time working on learning Spanish that I decided to research what are the more effective and less effective ways to learn a foreign language, so that I would use my time in an efficient manner. I read 13 books on the process of learning foreign languages. One thing I learned was that speaking requires the development of additional skills beyond comprehension, listening, reading, and writing, and those skills do develop much slower. Also no amount of listening, comprehension, and reading can build those additional skills that are exclusive to speaking. One does just have to accept that speaking is harder and it takes longer to develop speaking fluency. It comforts me that I work with children and have definitely noticed that their speaking ability also lags far behind their listening and comprehension skills, probably by several levels. I think as adults our expectations about speaking are unrealistic because we forget how many hours of immersion were put into learning our first language. Even when we were 6 years old, and had had 6 years of immersion, our speaking abilities were not held to the same expectations that adults tend to have about how well we should be able to speak after 6 years of learning a foreign language.