Matthijs was born on November 1, 1996, in Culemborg. He grew up, together with his older brother Max. They went to the same high school. Matthijs was a good student and frequently made the dean's list, as did his brother. Throughout high school, though, Matthijs encountered a lot of bad people. He often got in trouble with them eventhough he tried to avoid having to fight. The day came and he lost in front of the entire school. This made him fall into depression. His grades dropped, he got tattoos and dyed his hair black.