Custody in Ontario

So to start this my baby daddy is a complete dick he has bad anger issues and he drinks a lot and does drugs I know he’s not gonna have any chance in getting custody of our 2 year old but anyone in Ontario on this app that can help with with my first steps on what to do I have no idea as this is my first child and I’m only 21 I’m putting this post anonymous but if I see you can help I will message you

Edit he’s also on house arrest he can only leave where he’s staying on Saturday between noon and 4 for home invasion on the house where me and his son are living he’s also got assault causing bodily harm on his charges