One of my students had been living in Denmark for 3 years, and had a lot of lessons at "Sprogskole". He still spoke in English to Danes around him. After 6 months with two lessons a week with me, he always spoke in Danish. And after another 6 months, you could hardly hear that he was not a Dane, very little accent. You are welcome to schedule a trial lesson with me. Also if you do not want more lessons. I can help you structure your learning. You are welcome :)