I’m seeking your help !

I’m writing this in a very low state of mind. But yeah, I feel like I’m losing my freedom. I feel like I can’t do anything because of my brother. My mother and I feel like we are under his control (I know this might sound wrong, but no). He is very depressed and he doesn’t talk about it. And he shows his frustration at home.. and it genuinely hurts the things that come from his mouth.. and he wasn’t like that. He’s going through a lot (which he doesn’t have to but chooses to) we believe that’s the reason behind this. This is making us or for me to even get out of the house. I don’t know how this sounds to you. But it’s horrible. Is this situation something that I can manifest and change? Please don't leave anything rude, if you can't help please don't be mean.