Find a song that calms you down and listen to it. Sometimes just having earbuds in or headphones on helps too, even if you can't handle music playing through them at the time (sometimes I can't handle having music playing through them.)
Try to avoid heavily processed foods. I find that when I keep my diet cleaner, it doesn't necessarily make me LESS anxious, but it makes the anxiety easier to manage without heading in destructive directions.
Exercise is usually helpful. I do swimming, the flow-y coordinated movements are awesome, even if the temperature changes are kind of hellish (but they're short-lived.)
Weighted blankets are expensive, but I've found a decent-ish substitute is a sleeping bag and a couple blankets on top. Works less well when it's warm out.
Coping with autism can be pretty hard. I like to have at least a couple friends, but there's always a gap that just leaves me feeling lonely. The best I've found are two people who get that the gap exists but try to find ways around it and help me make the gap less disabling.
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There's being unique and different, and then there's being too different. I don't seem to toe that line well at all.
I love PMs but have no clue how to start a conversation.