If you want to be a doctor, lawyer, dentist or an engineer then yes.
Pretty much this. But I'd say this applies to College. In highschool, as long as your gpa is 3.2 unweighted and 3.6-8 weighted, and u have commu service. I'd say you can get in a decent uni. But going the CC route for two years is one) easier to get into and 2) much cheaper. the, if your college gpa is 3.5> you could get into pretty good uni. once your in college, if you have a stem major its absolutely key to make studys priority 1. Go hard and apply yourself bc ultimately you need to actually be learning this stuff.
TLDR: Go hard, put all your effort into school, it will pay off in when that resume is top notch with high gpa, clubs, and INTERNSHIPS!
aND YOU CAN FIND A BALANCE FOr a social life just have to maintain great time management.
But I understand, I struggle with my school commitment but not so much compared to the past.