帮忙翻译下这个句子 有点难度 英语

I'm a salesman.
I'm so disappoint that he did such a kind of thing.
There are many differences with the job whatIthought.
I think it is not very hard to learn and English is not used frequently as I thought.
这是我翻译的极限了，应该没有什么语法错误。

I am doing business
I am very depressed do not think he necessarily
I have a satisfying career and very different places, I think it·s much more difficult and I do not think there are so many places in English

I am doing business

I am very depressed don't think he necessarily

I have a satisfying career and very different places, I think it's much more difficult and I don't think there are so many places in English

楼上两位一看就是用机器翻译的