if a website asks me for a verification code and i check my email and it's not in there within 0.1 picosecond of the request i roar and swing my arms madly and start hurting those close to me
No, there is no "Benadryl challenge."
Your kids are either trying to get high or are trying to kill themselves. Stop blaming the internet and start thinking about ways you can help your teenager not feel like the only escape is to hurt themself.