Nobody listens to me

I’m female 20 years old. People are constantly twisting my words. I live with my grandma, I’ve been burnt out my whole life, people expect so much effort from me but I’ve given all I can give. I’m so tired, there’s just nothing left inside me, I’m just a shallow husk of a human being. They all say “nobody knows you better than you know yourself” but then argue with me every time I try to tell them what’s happening with me. Grandma will constantly say, “you were so bubbly and happy for the last three days what changed???” And I explained that she’s been too hard on me lately and expects too much out of me and she just clapped back with “oh for Pete sake you just want everything your way and you never care about anyone else” and then I’m always accused of being “angry” and “irate” when I’m really just mentally and emotionally exhausted and am desperate to be heard. Other neurodivergent people get me. But these people I’m with don’t. I have nowhere else to go, I have no life, I’m completely miserable, and they just keep saying I need to try harder and I am “capable of more than what I give myself credit for” It’s completely hopeless nobody is ever gonna hear me… she insists on a professional diagnosis before she will listen but then then says “you probably have autism” but then she won’t read anything I give her online, things I actually resonate with. She doesn’t wanna hear it and her response is “those psychologists don’t know you!” But then why do I relate to everything being talked about??? I’m at a loss, she’ll say “you just wanna lay around and do nothing while everyone else does everything for you!” And I’m like no.. I’m just autistic and I CANT do those things I’m too TIRED!! And she’s like “well if you’re that bad then you need to go somewhere to be treated” NO I DONT!! I JUST NEED TO BE LISTENED TO! Someone please help me…