Marriage issues between me and my wife.

Its been almost 6months that I and my wife got married but our marriage life is not going good. We do fight over every other day almost. Differences are there. I can't understand what she wants me and she doesn't want to listen what i want from her. We are almost equal age with just six months age difference. She compares alot and says she had good life before even though we don't have any financial issues but still she feels she is not happy with me. I have tried so many times to ask what she wants. She had a past too due to which as well we do fight alot. I do get very stressed due to this. Even there is understanding level between our families too. She feels like she has no good life any more and she doesn't want to live. I feel like She has alot to say whether its past or her thoughts about me but she doesn't speak out not even to her parents due to which even i started getting frustrated and started feeling like hell.