Depression around me

One thing I had to learn to handle the past 5 years or so. Is how much other people's depression affects me. To me its easier to handle my mom in a bad mood. She is extreme bipolar and schizophrenic. So you can see when I say its hader then handing my mom what I mean. Im sure other people's depression was hard on me before then... I just didnt notice it at much. Between my household being depressed and handling friends that were depressed.  No wonder why it was hard to keep my depression at bay. Then when I moved for college. I still heard all the depression in family and friends.  But being so many hours away no wonder why I had to destract myself. When I wasnt distracted my mind would wonder off. I would get so depressed. I found so many ways for me to die and no one could of stop me. I made friends that were also suicidal.  It helped. When I got pressured to leave my dream school. I ended up doing so. I moved to a small town. To live with a very suicidal and emotionally desterbed guy that I dreamed up this world with to the point of not seeing what I should of. His 2 month old son. And his parents. I still got to hear about depression that other people were going through. But I was holding myself back by focusing on this little baby that became mine. He became my world. My way of staying out. With him I couldn't care less of the non reality that I made around us. 6 months before he turned 2. The guy and the kid and myself were living in our own house. We were married. And we invited other people to live with us. So I ended up with 5 suicidal people under my roof... thats when it became hell for me. Now its almost a year since they all moved in. 2 of the people left. The rest are still here. So much had changed. And yet im dealing with depression more then normal. And its eatting me alive.