I decided to prepare for IELTS exam. I've been practicing for 1 to 2 hours a day on weekdays and 4 hours a day on weekends but I still hardly notice any significant improvements. I've been doing this for 2 weeks now. This frustrating result makes me think that maybe I need more appropriate drills to improve on my weaknesses. Just like in swimming, you don't get any significant improvements by practice alone; you have to pinpoint your weakness and come up with a specific drill to address it.
In my frustration, I tried to record myself when answering a question that is normally asked in IELTS speaking test but this time, using my native language. The result? The same disappointing talk. I could hardly make a good list of things to discuss about the subject and I too often spend more time thinking and remembering than speaking. My fluency, even in my own language, was really poor just because of the fact that I can't provide a good amount of ideas about the topic. My problem is, I don't have much opinions on too many things. Let alone coming up with precise and descriptive adjectives.
Given my current situation, what's the best way to deal with my weakness?