I just wanna know why i had to get all the mental illnesses in my family

My brain is making me feel like I wanna do the harm to my family … and is questioning how haven’t I done it yet like wtf??? My thoughts sound crazy

LONG VENT POST: This is my second post of the day. Seriously, I am SO sorry. I have therapy tomorrow, I promise I will shut up after this lmao. Anyway, for Memorial Day weekend, I spent it at my aunt/uncles vacation house. Fortunately it wasn’t a big crowd - just my mom, grandmother, aunt, uncle and I. For context, I come from a pretty big family, and I am the youngest of 7 cousins and a younger sister to two brothers. All my cousins are in their early to mid 20’s, each very successful in school and their careers. My half brother is 29, and absolutely crushing it. My full brother is turning 23, he’s also doing amazing with school. I just turned 20 in April, I feel very lost. I know I want to be a forensic psychiatrist one day, and that I want my PhD. I want to be the best therapist I can be, but the fact that I barely get by with ocd/adhd has been discouraging me, so I currently feel like a flop. Anyway though, spending time with my aunts/uncles/cousins/grandparents triggers my ocd the most, as majority of them can be on the judgmental side. ESPECIALLY my aunt, she’s on my moms side, and she and my mom are total opposites. My aunts a very calculated, straightforward, logical, stern, sassy buisnesswoman. She’s successful, but lacks a lot of understanding and can be so cold and just mean. My moms a kindergarten teacher in a struggling community, and she’s always thinking about others before herself, extremely emotional, caring, but neglects her own needs a lot. They’re sisters, and they bump heads a ton. My aunt and all of her kids aren’t neurodivergent. They simply don’t understand mental health. My mom does, thank god. My aunt and uncle think that if a kid is having a psychotic break, then that kid should be kicked out of the house and not helped at all. My mom and I entirely disagree with this idea, and that someone clearly mentally suffering NEEDS mental health help asap, and they need to be home. The streets are the last place someone suffering should be. While we were vacationing at the house, my mom argued about this with my uncle. I was asleep, thank god, but I seriously hate having people in my family like this. I can never tell them about me having ocd, they’ll think it’s just an “excuse” for not getting things done, or just me trying to feel special. The reality is, they don’t get it. My full brother went through the worst psychotic break a few years ago. It lasted two years on and off due to bipolar disorder, but thank god he got himself help and he’s doing absolutely amazing now. He’s frustrated and embarassed with himself but now he’s on track, and as I said, crushing it with school. But the entire time he was going through this, my aunt and uncle just didn’t understand. To keep it short, they thought his mental problems were behavioral, and that he’s a “crazy” kid. The reality is, he was coping with the loss of his childhood best friend and our other uncle who was like a second father figure to us. He had manic episodes from the grief and self medicating with drugs and alcohol. This was all the while Covid was happening and he was a freshman at a college states away. He was so vunerable. I’m saying all this because, well, how am I to seriously be forward about my mental struggles when they couldn’t even show the slightest amount of empathy to my brother, who was struggling, so much more intensely than me? I’m quiet at family gatherings when they’re around for this exact reason. I have so much resentment toward them for it. I try to avoid them when I can, because I love them, I just hate their actions/views. What do you guys do with these kinds of people?

Before I start this let me preface with this: My dad was abusive and would scream and hit me. Me and my girlfriend just came back yesterday from a long trip in the Bay, surrounded by family and getting little to no sleep, even before we went to the Bay. I had work today, a long, stressful shift. I come home and find out that not 1, but 3 of her friends are spending the night. This would be fine but they are spending the night in our small, hot, stuffy room, on the second bed. I am getting so upset. I feel like I havent had a break at all from people and I'm getting so overstimulated and angry at myself. I keep getting the visions and compulsions of screaming at them like my dad would or straight up just snapping at them. It's all in my head. There's just a pit of rage in my stomach. I don't want to hurt them but my brain wants me too. I'm so mad at myself for even thinking about this. If it wasn't 100 degrees I would have taken a walk but the heat just stresses me even more. I don't want to be my dad. Ever. He always told me that I got the darker part of his brain and inherited his mindscape, and he always said it with pride and I feel so upset.