I'm pushing 40 and the only thing that makes me feel good is managing a bunch of teenagers because they'll do whatever I say
Why would that make you feel good?
Because I'm a great and powerful manager and leader.
You may feel as though you are an all-powerful leader, but pushing around teenagers is disrespectful. When you impose upon others, they will hate you for it.
I'm cool with that if the teens hate me, because that means I'm doing a good job.
I don't think that is a good way to gain respect. Just because you are their manager it doesn't mean you can treat people any way you want. You still need to show them respect even if they are pretty young.