The part of the brain that regulates emotions is the frontal cortex. Now I know many people have said that no frontal cortex is fully developed before age 25, but I disagree with that for the following reasons:
1. To determine whether your frontal cortex is fully developed or not, you need an MRI scan. There are eight billion people on Earth, and only 100-150 million people get MRI scans each year. That's less than 2 percent of the global population. So there might be some eighteen-year-olds with fully developed frontal cortexes that we don't know about.
https://collectiveminds.health/articles/number-of-mri-scans-per-year-worldwide-overview-of-global-mri-utilization
2. Educational psychologist Jane M. Healy says that human brains are physically shaped by experience. So the more you use a certain region of the brain, the faster it matures. She wrote an excellent book about this called "Endangered Minds".
https://www.amazon.com/Endangered-Minds-Children-Think-About/dp/0684856204
https://askatechteacher.com/what-about-our-kids-endangered-minds/
3. Not all teenagers are wild maniacs ruled by their emotions instead of logic. Several teenagers have earned bachelor's degrees before earning their high school diplomas. One teenager earned a Ph.D before earning her high school diploma. Her name is Dorothy Jean Tillman.
https://abcnews.go.com/GMA/Living/teenager-earns-doctoral-degree-age-17/story?id=110129194
If we can get more teenagers to use their frontal cortexes more often, we'll achieve the gains you're hoping for. Thanks so much for making this.