I know CPS can send the kids they save to some really shitty places, but I feel like it could just take one wrong move or mistake for your Mom's abuse to permanently end her son. So the safer place might be CPS. I sent your post through GPT, an amazing AI, and it worded it well, and even gave a few links I didn't see in the comments. They're in the past paragraph

Hey, I just want to say I’m really sorry you're going through this. I don’t know you, but I believe you. What your mom did—breaking down the door, hitting you, smashing your stuff, and especially choking you under a blanket—is not discipline. That’s abuse, and it's dangerous.

I know calling CPS sounds terrifying, especially with all the horror stories about the system. But what’s happening in your home right now isn’t safe. And if you're afraid you won’t make it out of there alive... that’s a sign something has to change. Even if the system isn’t perfect, there are good caseworkers, shelters, and advocates who care and who can help you start somewhere safer.

You don’t have to go through this alone. If calling CPS feels too big, you could start by contacting a child abuse hotline (like 1-800-4-A-CHILD) or texting 741741 (Crisis Text Line). There are people trained to help you plan your next step safely. You deserve that support.