Most autistic people struggle with sensoric overload due to a decreased ability to filter stimuli. In my case there are almost no special triggers but the multitude of stimuli, foremost accoustic ones, followed by visual ones, followed by haptic ones. For me it is very important to minimize them by using ANC, a basecap and/or sunglasses as well as large and soft clothes
Apart from that he most important thing is to recognize when I’m starting to melt down and then to grant myself a timeout as soon as possible. Therefore I had to learn what helps me to relax the most. Being in a room with only a little light and sound, read a book, play a game, watch my favourite TV series … If in the office or the public I sometimes retreat to the toilet, which is embarassing to admit but kind of helps.
Unfortunately I can’t use the app for my public transport ticket because it doesn’t support .pkpass files.