Welcome to Fluther.
I can understand and support your desire not to want to share intimate details of your life with us strangers on the internet – and that’s very wise. So by all means don’t give up a lot of details. But … if you’re not going to give specifics, then the generalities you give have to be at least comprehensible.
How can you “have a conversation with your mom” if she won’t listen? That’s not a conversation. That’s the antithesis of a conversation.
And if it’s “something in the house that has to be gone and she knows it” then it sounds potentially threatening, and all that we can do is guess.
Other than that, for a fifteen-year-old writing a native language, I have to tell you that your writing leads a lot to be desired. We have kids coming to Fluther from around the world with English as their second, third or fifth language who articulate a whole lot more clearly. Please don’t let us down here. Up your game.
@LuckyGuy has the best generalities that I could offer about your particular living situation. If you won’t say what the problem is, its “actual” effect on you, how long it’s been going on or what the potential for further harm is, all we can say is “be safe and hang in there”.
But I can offer you something about having a conversation, anyway.
You need to talk to your mom when neither of you is stressed out. That means, not when you have incomplete chores that she’s been ragging you to complete, not when she’s already angry with you about something else (or about the thing in question, whatever it is), not when she’s late for work or you’re late for school, and not when she’s trying to concentrate on something else. Because as much as we adults love our children, we also have lives apart from our children, too. So that’s the first thing: pick your time to start the conversation.
And don’t jump right into “there’s this huge problem that you never talk about” – because if she never does, then that conversational gambit will also surely fail, and you probably know that by now (but you probably also keep trying it, I’ll bet). So stop that. Pick a topic of conversation that you can both agree on: Nice weather? Bad weather? Talk about that. A lot of conversations start about very bland topics where the people can agree on something and then build on their agreement. It might sound stupid, but if it works, then it’s not stupid.
After the conversation has started, then take a tip from television shows about hostage negotiations: Try to make the conversation one in which you don’t say “no” to her. That’s the tricky part. Keep her talking, keep it light and friendly, and see if you can avoid saying “no” to her. Because the flip side of that is … you want her to stay in agreement with you, too.
And definitely exercise your language skills in speaking with your mom, as well as in future writing. That’s not just for our benefit in understanding; it’s to your benefit to make yourself understood and present as the intelligent young person that you are.
Try that, see how it goes, and get back to us sometime.
Good luck, yes?