In art therapy, the self-portrait experiential is sometimes relevant.a variation here. Collage Self Portrait Instructions: A program for teens, or any age, really. Revised Instructions from Rachel Moani
This seems like a really therapeutic idea ~"I was really unhappy as a teen and last year, at age I sat down and wrote to my younger self. I told her the things I know now and what to do to try and survive this crazy roller coaster we call life.
Teaching your child to recognize and regulate emotions is especially difficult if the child is on the autism spectrum. Emotion thermometers are designed to help you and your child recognize the early warning signs before a meltdown happens.