California, USA

I have enough free time to be working on any skills related to mechanical engineering. Should I leave behind any extra-curricular that are unimportant to this?

I'm first looking for a major in Chemistry, but am thinking of specifying into Chemical Engineering. How am I meant to get there?

What are some skills that someone could learn and improve to better work for a career in something mathematics related? or possibly something related to engineering and physics based.

I'm currently in High School and I'm failing AP Calculus which is making me anxious I might not get into college because of an F.

Should I find a way to drop the class?

I heard that neurosonography brings in the most but then I learned that that isn't a formal job anymore because it became a subset to another role.

There is all types of Nursing, Medical Assisting, Kinesiology(sports med), and as well as All types of First Responders.

Im skeptical about college degrees decreasing in value every year. I seen teachers people who went to good colleges and ended up with mediocre jobs. I am not sure if I should try to get into a good college and end up with a lot more debt.

I am a high school senior who wants to study civil engineering in college and I'm looking for ways to make myself stand out before graduating college and looking for a job.