这些话英语怎么写

I went to learn Yoga five years ago but I was barely qualified. The coach said it was difficult to teach me, so he asked me to buy a disc and study at home on my own. That's just because I said he acted like a rearhorse.

你不是吧,金太阳就这水平?
study specialized Yu increase 学习专门的...
不符合题意啊.
it was very difficult taught me? 错.
It was very difficult to teach me.

I have to ..(全文过去式啊)
应该是I had to
.... 无语了.

Five years ago, I went to study specialized Yu increase, which could be considered barely qualified, the teacher said it was very difficult taught me, I have to buy the CDs of their own at home, because I like that he moves only mantis! ! !

我在5年前专门跑去学榆加，只能算是勉强合格，老师说很难教我，要我买张光碟自己在家学，因为我说他的动作就像只螳螂！！！
Five years ago,I intentionally went to learn yoga,I barely passed it,the teacher said I am a low student to teach,asking me to buy a disk to learn on my own,for my movement like a mantis.

Five years ago, I went to study special