The OP has two basic choices follow his desire ignore the holidays at the risk of people getting mad at him or use a calendar program to notify him. Most calendar programs give the option of multiple reminders and reminders of at least a week in advance.
As for forgetting holidays, it is not an Asperger trait per se. What is a trait is hyper-focusing on interests to the point of forgetting other things. It does not matter what is the thing forgotten about.
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Professionally Identified and joined WP August 26, 2013
DSM 5: Autism Spectrum Disorder, DSM IV: Aspergers Moderate Severity
“My autism is not a superpower. It also isn’t some kind of god-forsaken, endless fountain of suffering inflicted on my family. It’s just part of who I am as a person”. - Sara Luterman
Last edited by ASPartOfMe on 16 May 2021, 7:19 am, edited 1 time in total.