Thai-English translation requires advanced skills.
You teacher should teach you how to write simple English first. He or she should teach you 'what a sentence is' and 'what a fragment is'.
If I edit your English translation, you will get good marks, but your teacher will think that he or she has taught you so well. If it is so, you will learn nothing!
It I teach you how to write English, which is time consuming, your teacher will get paid for doing nothing.