"Probably the most interesting thing I've noticed is the way I've learned to communicate. I feel like every word or phrase I use is associated with some specific instance - either the way I learned it, or a certain pronunciation, or the way a person said it in a movie... "
(I'm not sure to "quote" you with the proper format, so I've just put quotes around it.)
You sound like an interesting person! Some of what you've said to describe yourself reminds me very much of my son, who has AS. (I'm NT.) I especially like this particular quote, as I am fascinated and impressed by the way the mind of a person with AS works. My (adult) son has a wonderful, brilliant mind, and -like many with AS- has a unique way of looking at things.
Your hoodie story reminded me of one day when my son was in elementary school. He was not particular about what clothes he wore to school, and was happy to let me choose his clothes. On this day, he asked if he could start picking out his own clothes, because (as he said) "I want to be more like the other kids. Their clothes don't always match." \
Your "concrete" way of thinking sounds very familiar to me, as I can relate it to my son's way of thinking. The way you've taught yourself to "overcome a lot of the difficulties people with Asperger's face" also sounds very much like my son. He is my hero for what he has overcome.
Best of luck to you, as you begin this journey to learn more about yourself!