always keep in mind that they are only people,who make mistakes,just like you. Love them unconditionally! :)

The best way is to read.When you read, you hear how something is said,how words are used,and you learn new vocabulary. My father is an English teacher here in Korea,and he told his students to read at least one article a day at: http://www.voanews.com/specialenglish/ . Each article has a voice clip attached to it.After 3 months his students' English was much much better,and they spoke much better than the other students. So if you read and listen to that one article every day you will definitely see an improvement. And also, create your own English 'world'. Listen to Englsih music,try to make many English friends,and watch alot of movies! :) (But remember,reading is very very important) Hope I could help you! Good luck,you can do it!!:)