Cause you are not satisfied with your English. Actually we are not native speakers, we wont lose face if we say something incorrect. Just like when we hear foreigners saying inoccasional Chinese, we seldom laugh at them. :) Be brave. (:

没关系，我们都是这样的。不要怕丢人，也没有会笑我们的。所以不要害怕犯错，如果不犯错我们就不用学习了。

No only you, Phoebe. There are many here... Like a baby learning to crawl, then walk and last run... Start somewhere and there are many people who will hold you when you fall. Cheers.

没环境呗，一直看英文愿音的电视剧，大脑就会不停地在响英语，会有说英语的欲望的，不过没有人陪我说呀