Well, for one example, as AaronB mentioned you use the word brought instead of bought throughout the game. Brought is to bring something (past tense) and bought is to purchase/buy something (past tense).
So the very first sentence in the game: "I finally brought a 'cheap' apartment..." should be "I finally
bought a 'cheap' apartment...".
Sentence 2:
"I dreamed about living in New York since I was a kid"
Should be:
"I
have dreamed about living in New York since I was a kid"
Those are just a couple of examples, but there are various similar issues littered throughout the text. I hope that helps with specifics. I can certainly understand the difficulty given that you are a none english speaker. Native english speakers often have trouble as well.
I would recommend trying to group up with someone who can edit your writing or study up on grammar.