Emergency. How to take care of myself after being expose to my trauma? Sis and dad visited

[Against_the_current]

They visited for the geeky con here and i'm super anxious. Dad was always like "If u want this, buy it with your own money." in the car "If u get charge for not wearing your belt, you're charge, not me, you deal with it". Like we're not his children. I'm hearing my mom say "he now has another kid and you're not important". I'm just a jelaous jerk, right? Mom's just confitioned me to be a jelaous jerk, right? Please let the fault be in me and my anxiety, not a real reason. So they came, we went to the fest, sis bought herself some anime and gaming merch. Then we got to my accomodation. They left me luggage as If i'm moving out here and this freaked me out. I feel like i want to go back home but i'm getting triggered by any interaction with my family and im scared of mom. I'm wondering what is she doing now. Is she mad or something or going psycho? I hugged my sister and she felt nauseus. I'm worried it's because of me and my anxiety. I don't want to infect her with anxiety. Is she gonna be okay after this event? And how to calm myself down? I feel like i won't cry but my soul is breaking and i am scared of getting more traumatized. My heart hurts. I don't think i can cry or get a Breakdown, it's just internalizided and i'm scared of it bugging my psych. How to take care of myself in this? I'm so scared dad doesn't care about us and of sis getting traumatized. It's just anxiety, right? I feel so alone and abandoned. By every male figure espessially. I can't afford to get traumatized now, i have to write 7 essays until Monday. I'm so alone and scared.

[Against_the_current]

Okay. Thanks for letting me know