Please help custody question
Hello everyone let's start by saying I'm in Ontario Canada and I have a question that pertains to custody. This is the story. I am a young mother who decided to pick a guy to have two children with. You'd think I would have learned from my first child however I didn't and anyway I need some advise.
The guy I had my two daughters with, one is 2 and one is 3, he smokes weed, drinks daily and does other harsh drugs as well as has a criminal record and an abusive record towards me throughout our 5 yr relationship. I want custody of my daughters. Now he has told me I am going to lose and he will go for full custody and wants to ask the courts for rights to have them on every weekend, plus a day during the week as well, as if I have to bring them to a doctors appointment, I have to bring him, and wants to have them when they are school age so he gets to pick them up and drop off when ever he feels like it and I can only imagine whatever's he is going to be asking to have if those are just a few things. He is going to make up a bunch of things that aren't true or say anything to have his own way.
Pleassse help me and tell me is this right? Can he do this, and will the courts grant his wishes? What am I going to do? I am really scared and fearful of the outcome please anyone help me.