Autistic primary school teachers- how do you manage the intense environment?

I recently got a job teaching at a primary school (I have only taught older teens and adults before) and I was specifically brought on to teach after-school clubs. I did my first session today running a half-term comic club, the kids (about 20 ks1/2) seemed to like the session and I think it went well but oh my god I did not realise how intense, loud and highly stimulating children of this age group are.

I'm autistic but lucky enough to have never had major issues with noisey and fast-paced workplaces and (probably stupidly) didn't even consider that it might be a factor until I realised I was having a legit meltdown on the commute home- something that hasn't happened to me for years atp.

I think what I'm basically asking is if this is something other autistic teachers experienced and were able to get used to (since I did enjoy the class/planning the lesson) or if it's a kind of 'not for me', 'burnout', 'dreading going to work' situation.