I’d recommend telling NO ONE about the emergency fund. People who care the least about your wellbeing will come up with ways to manipulate you out of it. (At least in my experience) They may not even be bad people... they just value themselves more than they value you.
Protect your health. Little toxins throughout your life can and will alter your DNA.
Also, repeating the point about exercise, but add progressive resistance weight lifting. Muscle mass has a HUGE impact on diabetes and Alzheimer's. Lifting weights is also a great outlet for stress, and a great way to build a non-work social circle as an adult once School and extracurriculars end.
And lastly, don’t trust random strangers on the internet. I could be an AI bot. Please verify things for yourself with a reputable source.