struggling

My first post here, so hello, and hope I can ask for help here?  My son is 22 and awaiting diagnosis -takes so long - gp is convinced it's high functioning asd. I did a terrible thing today -he went out for the first time in I don't know how long and I cleaned his room. I was so sick of the disgusting state of it. I only intended to change the bed but couldn't help myself.  Needless to say he was not happy. I don't know what to do for the best - any thoughts on this?