My landlord failed to tell me that I had signed a two year lease until it was signed and then she put in the dates

I saw nothing on the lease stating it was for two years. After my wife and I had signed it she proceeded to fill in the dates and then told us it was a two year lease. On top of that she failed to mention that there was a family with small children living above us. It has gotten so noisey that we can't sleep or enjoy peace. Talking to both her and the other tenants has done no good. We have also had repeated problems with the shower. We had to wait over 3 weeks for her to get someone to fix it. But now just 3 weeks after the repair it is acting up again. The landlord started yelling and cussing at my wife because she complained about these issues. Is there a legal way out of this lease?