What are some life hacks for parents of teenagers?
I've found that you can't control a teen too closely; you have to give them freedom to make decisions and mistakes. If you don't, you end up with someone who can't think for themselves.
So expect mistakes and stubbornness. It isn't entirely unhealthy. In my household, if the kid wants to keep her room a complete mess, I let her. There are exceptions under the heading of "health and welfare." When the cockroaches start showing up, the room gets spotlessly clean. Until then, she can have food and drinks but no spills. Spills get cleaned up immediately.
My last teen (5th child) doesn't like to gather her clothes for washing. No problem, but we don't do a load of wash for one garment. The washer can be run any time of day or night, but I can be unreasonable if she is.
We don't play games with medical problems. She has all of her vaccinations and sees a doctor at least yearly. That's one place we don't skimp.