I need advice on what to learn before college.
I am a 17 year old student who is done with High School and is now preparing for college to study Computer Engineering. I have got some serious free time ahead of me (barring potential internships) and I want to make good use of it. So I ask, from your professional and personal point of view, what should I learn given my intended course of study? I love science, math, tech, economics - you name it! I love knowledge in general but I love efficiency even more. So tell me the things you wish you did and I should do in anticipation of a future professional career and life in general.(An answer from an experienced professional in any field would be greatly appreciated).