Just thought I'd add that I would translate 天哪我要疯掉了 as "Omg, it's driving me crazy!".
Nono's Diary
I'm comnfused,. I don't understand what my teacher speak says in English,. It's so bad difficult ,.damn it!Grrr. 天哪我要疯掉了omg
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Some comments: There are usually several ways to say something in English. I guessed at what you were trying to express, so it may be that you wanted to say something a little different. "Damn it," is a phrase used to show frustration. It's used more often in spoken English than in written English, unless you are writing dialog for characters. I changed "Damn it" to "Grrr," although there are other words and expressions you can use to express frustration such as "I'm going to tear my hair out," and "I want to scream."