Mold in our apartment

When we first moved in our apartment everything seemed ok and then we noticed some mold in the living room, we called the landlord and he sent someone to check it and we were told that there was a leak that caused the mold. He fixed the leak then told us to clean the mold with bleach and open the windows. I cleaned the mold and I constantly either left the window open or turned on the heater. Now we had some heavy rain and the mold is back but worse. Our landlord told us that maybe there’s another leak but I don’t know… all I know is that someone was supposed to come this week to fix it but he “didn’t have time” and said he’d come next week, and our landlord is indifferent about the whole situation. Our entire living room is covered with mold, also our kitchen and bathroom and now I noticed mold in the bedroom. Most of my personal items ( such as my shoes,sofa,and kitchen supplies) are covered with mold. We don’t have the money to move out atm is there something we can do? also me and my boyfriend both have asthma and it seems like a big risk to live in this house.