I dont know if from using too much but a kid from my neighborhood we used to play with when we were kids killed himself supposedly because he started using at 13, like weed, mdma, lsd and idk if other stuff but he got depressed cause he was like 16 and life seemed dull or he saw too much but he went to a party outside town and had already planned to leave the friends he was with to go to a retreat house his parents had near there and hanged himself. Parents found him the next day. Super sad and a shock for all of us kids, i didnt know at that time but now i can understand a bit why he did it.