1. I began learning English at school.
2. No, I don't. I also visit the English course twice a week.
3. Yes, I think it is possible. For example, I like to listen Canadian songs. At the same time I learn new words and word combinations. Also I learn English when watch TV. There are so many English words!
4. Yes, sometimes I het tired. It happens when I don't understand new grammar theme))
5. Yes , i think it is possible. But you should hard work! And work every day!
6. I think the duration is no matter. If we study with native spearker we would speak and now better language than now.
7. I need to learn English because it is global communicate language.
8. Yes, there are so many people interested in learning English. I think the reason is global communication in different types of work etc.