my sister (23F) who is on the spectrum and kind of has sensory issues lives with me (21M) at my dad's house, i am also on the spectrum but don't have as many sensory issues as her. She just recently got a job and now has to wake up early more often. The issue is that I like to shower/bathe every day. I’m a bit of a clean freak, and I dislike going to bed without showering in the evening. The problem is, if I shower past 9 PM, my sister gets extremely mad because it wakes her up or prevents her from falling asleep. I try to be as quiet as possible, but it's no use. I try to be considerate and shower before her bedtime but I'm very forgetful so ometimes I forget to shower earlier, and other times I don’t even get home until late, so my only option is to shower at night. She gets really upset about it, to the point where it bothers my dad too, but he refuses to pick a side on who’s right. I personally feel like she’s being a bit unreasonable. I get that noise can be irritating, but it feels absurd that showering after 9 PM is suddenly off-limits, especially since showering daily is a big part of my routine. So, AITA for showering late and disrupting her sleep, or is she being too intolerant about this? edit: i just saw that Asperger's is an outdated term, but she definitely is on the autism spectrum, i am too but a little less than her Edit: fixed some grammatical errors Her sensory issues have led to a lot of conflict in the past but i now I try to be very considerate with her sensory issues, but it's reaching a level of frustration where i feel the need to do something about it. I also feel like there's a level of hypocrisy because she has in the past kept me up from sleeping when i had to wake up early due to her being loud while gaming with her friends she dislikes things like earplugs or white noise...