AuDHD parent here, although I know the spectrum is big so for clarity I’ll say that I generally function somewhat well - work/study/socialise/no cognitive difficulties. However lots of sensory sensitivity for me, but communication/interaction is generally good now as an adult (forced myself to learn how to socialise as a teen desperate to be social), I am quite a rigid and ritualised person in how I like things - especially environment. I will also say I studied psychology and worked in mental health/with ND children from birth to teens, so had experience of children before having kids.
I find some things hard, not so much the being touched which I was surprised about, I’m more cuddly than I thought (not like that with others just my DC!), but the constant noise and talk. Im naturally quiet and my internal world is busy, so having to talk and externalise everything was very hard.
Routines were great, I was fab at that, able to provide lots of structure and containment. Fab at building games/crafts. Terrible at rough play and imagination based play but DH loves that stuff. Terrible when I’m tired, my brain completely shuts down and that’s when I stop functioning well, again, luckily DH can do well on less sleep if needed. I was also great at being hyper attuned to health due to my sensory needs so spotted quite a few illnesses for DC before they got bad and I am a relentless/detailed person so got it sorted with lots of evidence and tracking to GPs.
What helped me: supportive and equal parenting between me and DH, reading lots and knowing lots about kids in advance, family network, routines, learning how to nap!, slowly building in some flexibility for myself due to my own rigidity
what was hard: the noise, so much noise! Illnesses. Tiredness.