correction thankyou Four years ago,several teachers told me that you might make a step back in learning English if you dont have self discipline. Four years later ,i discover even i dont make a step back , but my progress is very small compare to four years ago.My vocabulary only improve from3500 to 4200 in 4years. i rethink a lot,what was the reason make me progress so slow in 4years.i include serveral reason. on one side, the electronic world is very attractive .Every application on phone and computer gonna consume your attention. it is attractive, the application want you spend more time on it so that you dont have attention on language learning any more. on the other side,i dont have strong self discipline power ,so that i cna not refused it at that time. I spend a lot of time on game and video streaming app. now ,i want to refresh myself,draw my attention back on english learning and i truthfully hope i can succeed on this point