Matthew is a 17-year-old who was diagnosed with autism at age 8. He discusses some of the challenges of having autism, including sensory processing issues and difficulties with social interactions. However, he also emphasizes that autism does not define him and highlights some areas where his autism has helped him develop skills and passions, such as playing music and studying IT. He hopes to convey that while autism can be difficult, it is important for families to support autistic individuals and help them find ways to cope with challenges.