Newly Diagnosed with Mental Health Issues at 41

New here. Just recently had my first real mental health evaluation at 41. I’ve always had family telling me “nothing wrong with you/your past” but just too much felt off and sure enough… I used to think it was cute/funny how my mom’s side has this joke about how we’re all a chip off the old block for forgetfulness. Now I realize it’s generational trauma and adhd and anxiety and whatever else that probably caused this, not genes. My mental health was never a priority as a kid and now I know that I got in trouble for forgetting chores…probably due to adhd that was undiagnosed. It’s becoming so clear now. And also depressing. I set a boundary with my mom last night and of course she wasn’t happy; she doesn’t know boundaries. So I’m stepping back from most of my family, since I recognize they all have mental health issues they are ignoring and are suffering from. I will not suffer any longer because of them. Has anyone here stepped back from family or no-contacted them, due to newly placed boundaries?