How do I leave this relationship. .

He's never hit me. But he's threatened to and I can tell a few times he was about to. But he's so emotionally abusive and this relationship is killing me. I have 2 kids who are starting to become affected by the constant yelling & now name calling in front of them. He is just so mean. . He disrespects me and talks crap about my friends. We live together and he does nothing to help me around the house or with the kids. If I ask him to do anything at all (like get up before noon or shut the lights off so they aren't on all night & day), I'm "nagging" & "bitching" 'all the time'. He just got a job working nights but before that was selling drugs. He's now "depressed" cause I don't want him to sell drugs. But now that we are 'broke' & I'm making him work a legal job, it's my fault he's miserable. I could go on & on & on for days but I just don't know how to leave this. We just re signed another year lease on our house so I got 11 months to go either dealing with him or finding a way out. I have nowhere to go and don't want to make me & my kids homeless. But I can't afford the rent by myself and don't know how id make it if I kick him out. & that's not even saying he'd go..cause I've kicked him out before but he always comes back. I don't want to go to a shelter. . My kids deserve better than a homeless shelter when they have a home with their own room & bed to sleep in. . Help me. .