I want to smash my s/o’s computer???

I work mom-Friday. Then I come home to take care of the baby. My s/o pays rent with his ssi (which he does not need btw he used to work for months in a warehouse job PERFECTLY fine). He throws it in my face that he pays for everything even though I pay for food and the bills. I also cook and clean and do laundry. He watches the baby while I’m gone but he does a TERRIBLE job at it. I message and call from work because I’m scared he will sleep through the baby’s feeding times. Sometimes he doesn’t change her diaper till I get home but thank god he recently started to

His family urges him to work or go to school but he doesn’t want to. Instead he goes on the computer or goes out with his friends till 12.

I get PISSED. Not only am I cleaning and cooking and taking care of baby but I’m also working. Sometimes when we argue I go to his computer and unplug his shit so maybe he can either be a proper stay at home dad or take his ass to a part time job. He gets pissed when I do that but IDC he stays up till late and then gets mad when I ask him to feed the baby because I have to go to work.

I got so mad today because his MOTHER took our kids social and birth certificate and gave me copies. I’m LIVID and I asked my s/o (angrily and for a good reason) to take me to her so I can get it back since she had it since my baby was born. He’s with his friend of course but gets angry and says he doesn’t want to.

So I put his computer out our door and now he says he won’t be going home.

WTF

I absolutely don’t want to ask my MIL to take care of my baby while I work so I have no clue what to do. Im pissed!!!