Could you please help me correct the letter？ Dear Jack, Long time no see. How are you going these days? I know that you are taller and taller now. I have also changed a lot. First of all, in the past it was difficult for me to learn English. And I couldn’t understand what my teacher said in class.But now, I find some good ways to lean English. For example, I take notes by writing down some key word. What's more, I used to get up late , but now l get earlier than l used to save more time to learn something. And I become more mature and now I know everything my parents do is for me. We have more conversations than before. Last but not least, I used to be so lazy that I seldom went out. But I realized the importance of doing sports. So I'm used to taking a walk after dinner. I have changed a lot because I want to do something great for our country. So I need to improve myself to face the challenges confidently.