I did my exercises daily, more than other participants who speak now better than me. One did excercises for a month then no more. He is pretty much fluent now. Other are doing excercises daily for 3 years and they are still not fluent. The guys I knew relapsed after years of fluency, at the relapse didnt occur in 1 day, it was gradual. You are saying nice things, i have heard that a lot from coaches. "If you do this you will be fluent. If you are not fluent, you didnt do you exercises well." I did one speech therapy in the past, I was pretty much the best patient and I was fluent for years. Then I had to move out to another country, alone and learn new speech. And I gradualy relapsed, it took maybe 2 years until I spoke as bad or worse than before. No amount of excercises saved me. My brain gave up. Now it is better, now I can speak in the foreign language "pretty good" but cannot speak at all in my mother language, i am almost mute even though I was fluent as fuck for years. You look like me few years ago, I was thinking like you