Trauma is tough, but also unsettlingly common in the general population. Most people never attend to it as it's always very difficult. And simultaneously it is not noticed as it hides behind dissociative triggers or is normalized if we've been living with it for too long. There are specific techniques that can help people access unprocessed trauma and successfully attend to them as it's the only way to be set free of them. It isn't easy work but crucial for a healthy mind and body.
Autism is simply a set of traits, that happens to manifest in a massive spectrum. It is genetically inherited and enables people to succeed in myriad inwardly focused tasks and activities, but at the expense of a reduced perception of the social world. It is nothing to treat psychiatrically or medically, but it does require a proper understanding of what the condition is and how the autistic individual's brain works. Once the personalized instruction manual is obtained, the rest is easy.
ADHD is simply a genetically inherited deficiency in dopamine and norepinephrine levels. It is one of the more treatable psychiatric conditions out there, but unrecognized and untreated, it can cause myriad challenges. I would know, as I have it myself, and I spend most of my clinical hours helping people hack their ADHD brains to success by maximizing their superpowers while minimizing their superweaknesses.