根据下面所给的题目和提纲用英语写出一篇不少于80词的短文.1.自学的优点； 2.自学中遇到的主要困难.

Self-study
As an adult student,I think self-study is very important.
You are more independent when you are self-studying, and you can control your own time to study whenever you think it is suitable. While you study, you can find your own method of study which is effective.
But everything have two haves.Fist, I speed and rate of learning are higher when learn with a teacher than learning alone. Second,I do not have to find extra exercises or other books, I must spend a lot of time to identify my mistakes.
Although Self-study is very hard ,I will hold on it .

Self-study
It is a good ability to study myself ,It make me learn knowledge more quickly .