A formative experience for me during high school was the opportunity to work in a co-op program. In conjunction with the technical vocational department in my school, I worked part-time with a company that produced microwave frequency electronic subassemblies often used in military and communications applications.
I excelled at this company for a few years doing really cool stuff that ended up on Navy vessels and fighter jet aircraft in the radar sections.
Being able to work on real electronics in high school was a cool experience that kept me occupied well after high school. It wasn’t until later that I left the company to attend college.