Am I overreacting after hearing my uncle openly talk crap about me and my mother?

So, there are some important things I have to mention before getting started. One is that I am a 15 year old female living with my aunt, uncle and my mother. Me and my mother had a house fire a little over a year ago, we pretty much lost everything leaving us living with my aunt and uncle. I already wasn’t very fond of my aunt and uncle before the fire so being throw in the same house with them wasn’t very fun for me. My aunt is VERY self absorbed and thinks the whole world revolves around her, for example she’s a RN and often works nights and sleep throughout the day which in the beginning was completely fine she needed sleep I got that but I wasn’t going to put my life on hold cause shes sleeping my mom on the other hand does the complete opposite she won’t go into the kitchen (her room is right next to the kitchen) unless completely necessary she won’t let me or herself leave the house because there are 2 mid sized dogs that bark at any sound. She’s making me walk on eggshells constantly when she’s sleeping because if she’s in a bad mood then everyone’s in a bad mood, my aunt will whine and complain about never sleeping enough when she most of the time sleeps until 9-6 after she gets home while my mom on the other hand literally never sleeps she’s a home health aid so she basically goes to the elderlys houses to take care of them and their basic needs until they unfortunately pass away. Due to her having this kind of job I’m usually able to come to work with her if it’s okay with her boss which is most of the time, since I go to work with her I know for a fact that she gets less then 4 hours of sleep every night while working herself into the ground to get me and her back on our feet, which means that she’s doing all that and making sure that everything in my aunts house is perfect because she’s scared if something happens that my aunt doesn’t like she’ll kick us out. I’ve tried multiple times to tell her that this wasn’t normal at all and she shouldn’t be scared of her own sister kicking her out over a single crumb that wasn’t cleaned up right or the lights being left on to long but she wasn’t having any of it, deep down I know she knows this isn’t okay but she feels stuck. My uncle is cocky to say the least, he’s a very well respected man around our little town so basically everyone knows him (I do have to mention that the day before the fire happened in my moms room he was in there messing around with the breaker because something was wrong with it idk AND he was the first one on the scene right after I called 911 and after my mom was in the hospital pale as a ghost the whole time that’s all I’m saying I’m not implying anything just saying) but because he knows all these people he’s doing a lot to help the process of my mom get a new house super fast.(cough cough so the guilt doesn’t eat him alive..cough) but obviously it’s been over a year and we’re all pretty sick of each other by now me especially because they are horrible people who did very traumatic things to me when my mother wasn’t around which I don’t feel like going into full detail right now but lots of yelling and being blamed for something I I would have never done and stuff that overall just adds up, so when I hear my uncle openly talk bad about me and my mom you can probably predict how I felt. My uncle was sitting on the sofa and I was in my room with the door open moments before this he had just gotten home at like 10 and I stayed home because well I just started homeschooling, I don’t have my license, and my uncles dog had a surgery not to long ago so someone has to stay home at all times and make sure he doesn’t lick the wound, so my uncle walks in he’s acting all nice cracking jokes all that but as soon as he leaves the room and goes to sit down I hear him start talking and I first I thought nothing of it because he uses the text to speech thing literally all the time so I went back to doing what I was doing and then I heard my name so I scared listening he said “yeah (my name) and the dogs actually (something) today she’s doing pretty good” so now he got my attention and then he goes “she literally doesn’t move” and I know for a fact he’s talking about me because he says that to me all the time because he’s just that way he tries to be funny but most people don’t find it funny, at least I don’t. There’s a moment of silence which was probably him waiting for a response and then he goes “ she’s literally a hermit crab.. she doesn’t move at all” and then I guess he was trying to be funny still and goes “hey mom can I go to my friends? Says her never” and that really pissed me off because the only reason I’m not out all day everyday is because first of all my mom works 100 house a week and I’m stuck here watching your dogs so you can do stuff for my mom so the guilt of ruining 2 peoples lives doesn’t eat you from the inside out!! And you have the audacity to talk crap abt me when you know my door is open! Then he went “ when it comes to (my name), (my moms name) is a huge drama queen” so at this point I already texted my mom to tell her what’s going on and I fill her in so she tells me to shut my door hard so he can hear it, so I did and by now I’m crying because I’ve given them everything I have and it’s still not good enough for them so my mom calls me and I turn the tv on so he can’t hear me talking abt him because I’m not soul less like some people… but anyway she calls me and I’m cry screaming teller her that after we move out I’m not talking to either of them no excuses and I’m finally tell her that this isn’t how family treats family and she’s telling me that I’m being sensitive and that I need to calm down because we’re almost out of there and I snap and tell her to not give me that crap anymore because she has no idea how they treat me when she’s gone v.s when she’s here and how I’m sick of being walked all other and a lot of other stuff but by the end of my rant she tells me to breathe and that I’m overreacting and to call her back when I stop crying so she hangs up on me and I’m so confused because like wyd I’m overreacting after everything I just told you and more but I call her back and I say sorry so many times because I realize how much I kinda just yelled at her through my emotions we talk it out but she still says I’m overreacting and everything will wash under the rug after we leave.i totally thought she would take my side after telling her that but she’s insisting I’m overreacting and now I’m not so sure and I don’t know what to do.