f77ms - I'd say there are some strong OCD tendencies yes, but both dcs show very clear autistic traits as well. My understanding is that they are often comorbid, just like ADHD is. I think because autism so frequently goes hand in hand with other things, it can be difficult to know which behaviours stem from which difficulty, which can sometimes make it troublesome to know how to prevent it. Trial and error is done a lot in my house. If it works, great. If not, back to the drawing board. And sometimes things that work for awhile just suddenly stop working, so we have to rethink it again.
I have to say that while it can be exhausting (and sometimes maddening!), I am still extremely thankful that they are generally otherwise healthy (or that things like eczema and asthma are mostly controlled by meds) and that it's not something life limiting. I can make adjustments to how we do things, adapt what we do and where we go as needed to some extent, do my best to prepare them for being an independent adult (and hope they will one day be independent as an adult, as we don't yet know this). It's part of who they are.
For me, the frustrations are the dreadful inadequacy of the support available and the difficulty steering through the deliberate roadblocks placed for accessing education. I'm fairly proactive and willing to fight for their rights, but some parents are just ground down, exhausted, or simply don't know where to begin. It's appallingly difficult to sort it in the best interest of the children involved. Nothing is done without a fight from the LA.