Don't worry about fluency. Fluency is easy to achieve by simply talking. If you practice speaking, you will be able to speak faster and faster. In high school, I achieved pretty good fluency in a month by talking to my English teacher (a native speaker) about two hours a week. That's only 8 hours of talking. In our opinion, it is much better to be slow and correct than be fluent and make a lot of mistakes. Why? Because if you are slow and correct, you can easily improve your speed and become fluent and correct. But if you are fluent and make a lot of mistakes, it is not so easy to remove your mistakes and become fluent and correct.