I have autism and my three year old is too much for me

I have autism and suffer from sensory overload, the thing is everything my son does contributes to sensory overload. I go in the bathroom in the quiet to try and prepare myself for the day and he comes along and bangs on the door like a maniac and turns the light on and off, both of which trigger sensory overload.He never does as he is told so when you ask him to stop doing something that triggers it, he screams ”NOOOO” and start being as loud as possible.Will my son ever understand that I’m different or is parenting going to be a living hell for me as long as I live?It's really effecting my mental health also as I feel I’m an awful father and parenting for me is torture. I’m constantly on the verge of an overload and always exhausted.I don't know what I am to do, I think he’d be better of without me. via /r/Parenting https://ift.tt/30KoEZz