Speaking English is just the start. After a while, you probably lose a bit of motivation for self-study. And maybe the price of a long course discourages you. You also probably want one to one classes. Why? Because you are now learning most of your English from real life situations, when the pressure is on and time is short. You probably need time and space to go back to these situations, that job interview, that health appointment, that social event. This is what we will do. I have been in your situation. Different country, different language but same feeling of stress and struggle. But also enjoyment at learning something new. So keep going and join up for these classes.