英语高手来修改作文,The splendid and exhasting 20 days past in a flash

英语高手来修改作文,
The splendid and exhasting 20 days past in a flash which is the most valuable memory in my life.
It is you that cultivate our minds with your extensive knowledge and your noble spirits.After 20 days studying in your class,a new dream has come up in my mind that I want to be a person like you who is optimistic brave industrious intelligent and knowledgeabl.I'm clear that it is a long-term and arduous task for me.Nevertheless I will keep on fighting till the end of my life.Farewe,my friend!take care my friend!
请老师看看有无错误,或者怎样写更有文采,

The splendid and exhausting 20 days passed in a flash which is the most momerable experience in my life.
It is you who explore our minds with your extensive knowledge and your noble spirits. After 20 days of studying in your class, a new dream has come up in my mind --破折号I want to be a person like you who is optimistic, brave, industrious, intelligent, and knowledgable. I'm clear that it is a long-term goal for me. Nevertheless I will keep on fighting for this goal till the end of my life. Farewe, my friend! take care my friend!

先表扬你勇于用新词汇.不一定要用难词来表达, 我用我的写作来表达同样的意思.多加点内容煽情会更好

Last 20 days that I study with you are the most memorable experience in my life. You are such a experienced teacher with wisdom. You always impart us knowledge with patience . No matter how many times we stuck in a specific question, you always are willing to help, never show a sign of unwillingness. You have many good qualities, such as working hard, making great efforts on the goal you set, very intelligence and the faith that you always be optimistic to life even encountered a very difficult task. All of these qualities have influenced me a lot, in the end, I decide to be a person like you. I have set this long-term goal, and am determined to pursue it in my lifetime. Last, take care my friend.