The first obstacle:the limitation of your vocabulary.Solution:Read more books,you needn't try to remember every new words,you will familar with them after you met them thousands of times.
The second obstacle:You may have great difficulty in learning English grammar. Solution:Read more,grammar is nothing after you command a great deal essay.
The third obstacle:You may feel boring while you learning English. Solution:cultivate an interest in English.read/listen/watch some interesting English article.
The fourth obstacle:lack of courage to speak English out.Solution:everyone may afraid of mistakes.I think it's necessary to make this clear to you:mistake is inevitable. Learn through each of your mistakes and never allow the fear of making one hold you back.
The fifth obstacle:you English writing ability is not very good.Solution: write English diary everyday.download a software(if you have PC) to check every word you don't know but should use.
五个方面的困难及其解决方法.分别是英语词典的局限性；语法学习的困难；长期学习产生厌倦；缺乏说出英语的勇气；英语写作能力的匮乏