You're very close! I'll make some edits.

1  My life over here is terrible.
2  Work environment is not very good (yes you're correct), benefits are few
3  But don't need to worry, every day has only about 10 people getting heavily injured,
4  and I am very careful.
5  We opened a small store, business is not bad.
6  Although I am not very familiar with English, I can still sometimes 
7  (This line is adding a word to the previous line)
8  understand what the white people (we meant westerners) are saying. (Line 6 to 8 are parts of the same sentence)
9  Hope I can get some fame here! I will work hard here, and
10 will be careful with my health
11 Are you (plural) still good?
12 Very miss you (plural), wish we can meet again

(I am a Hongkonger, speaking Cantonese since the day I was born. The other translations using translation software aren't accurate because there is an added character at line 7.)