My son's mom is scared of me.

I'm an American. My son's mom is Russian. We started talking by chance at work, then I learned she was in the process of being deported back to Russia. She was an immigrant, and she got pregnant and was on government aid. I took her in and convinced them to let her stay in the country, and she's been staying with me for several years now. She grew up in Russia, had a very hard childhood, was a victim of sex trafficking, and has serious mental problems.<br><br>The whole time she's been living with me, I've been nice to her, but she always smelled like shit and did nothing around the house. I thought I could help her, but she's a total piece of shit. When we took our son to the doctor, he said I need to have my son's head checked because he could have brain damage. We went to the specialist, and it turns out she fell asleep with the baby on her chest, and she fell on his head. She fell asleep because she was taking xanex, which is why she's always blackout drunk and can't remember anything. I refused to take her anywhere until she stopped drinking. She promised me she stopped drinking, and she was just sleeping a lot because of her health problems, but she's clearly drinking heavily again.<br><br>Now my son's head is fucked up, and I can't trust her to take care of him. I take him to daycare when I'm at work, and at night I take care of him by myself. In the morning when I leave, I call a babysitter to watch my son until I can pick him up from daycare, because I don't trust her with my son. She calls me at work multiple times a day and is like "What do I feed him? He's hungry." Or "He's crying, what do I do?" I'm like, "What the fuck? This is your son. You should know what to fucking do." She got mad and tried to make me feel bad, saying I should take better care of her and give her better health insurance, and I did, I always gave her the best insurance and took care of her and bought her everything she wanted, and she never showed any appreciation. It's like she fucking hates me, and she doesn't even care about my son. When I come home from work, she doesn't even say shit to my son, she doesn't even hug him or play with him. She just sits at home and watches TV all day, drinking. I asked her to get a fucking job, and she won't look for one.<br><br>I bought her the best health insurance, but the health insurance won't cover all her treatments because she won't stop drinking, and they say it's her fault she isn't getting better. I had to pay tens of thousands of dollars out of pocket for her treatments. I'm fucking sick of this bitch. I told her we're going to court and I'm going to try to get full custody of my son. She's fucking scared now, and when I come home from work she's like "Do you want some food? I can make you something to eat."<br><br>I had to pay for thousands of dollars of therapy for her, and she's still a fucking piece of shit. I even hired a Russian speaking therapist, because she only speaks Russian. I'm fucking sick of having to pay out of pocket for her shit. She's fucking useless. She doesn't even help around the house or cook or clean. She forced me to hire a housekeeper for her, and I'm still paying for that. I just want to drop her off in the middle of the fucking forest and never see her again. I will never date another immigrant.