Nobody else in my family has OCD so it's very difficult for them to understand or even care and it makes me feel really lonely

So I recently got diagnosed with ocd, and due to me growing up in a household who doesn’t believe in it I have an even harder time grasping if it’s a real diagnosis or not. I know it is but my parents still get mad at me when I tell them not to reassure me and things like that, since they don’t want to understand me anytime. They always put the blame on me and they do everything and how I’m ungrateful. I am very greatful but I told my mom to try to understand this condition but she refuses to, my dad just completely ignores that it exists. It’s just hard to cope around it and not be stuck in a loop, I’m leaving in a few months after graduating so hopefully that will help. It’s hard when my parents don’t want to try to understand what I go through.

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?

Sometimes I feel like nobody really gets me. Nobody knows what’s going on in my head. I try to explain in vivid detail, but my ocd immediately reads the other persons face and registers that they don’t get it. It’s a very isolating experience. Anyone else have something like this?