Not sure if there is more than 1 Christian from Boise Idaho, but I noticed that you may have posted a few questions. I too wanted to be a jet fighter pilot once, and joined the Civil Air Patrol, and dreamt of going to the Air Force Academy and taking an engineering major.
First, lets start with the apprenticeship. Kim is right, you should never start anything if you don't plan on finishing it. Quitting this could be viewed negatively by many, since it could affect others. This is an extraordinary opportunity! Think about it, only 12 people have been given this chance, and the continuation of this program could be based on the success and performance of this pioneer group. This is invaluable experience that can benefit you for a life time in many different ways. Other companies and organizations will appreciate the effort and perseverance of completing this program. Having said that, if you really feel that this is not a good fit for you and you don't see a future there, then get out, the sooner the better.
Now for the rest. Civil Air Patrol was a great experience. It gave some great leadership training, and it also showed me some aspects of the military life. It may help you decide if the military is something you want to pursue. I remember lots of kids would join, and soon decide that the uniforms , structure, rules and regulations were not for them. The military Academies look for very well rounded individuals. Academics and a great SAT score go a long way with them, but they also want to see that you are willing to do more. Sports activities, volunteering, extra curricular activities show that you are involved and want to achieve more and help others. I remember taking all the AP courses I could, but it backfired for me. My grade average dropped slightly and all the extra studying limited my available time for other activities. In the end, the academies did not care what classes I took, they just wanted to know what my grade point average and what my SAT score was. I went thru Aviation HS, which is a technical school, that did not put much emphasis on the SAT test. If your school is like that, I would suggest some SAT prep courses. Now, the AP classes, did make it easier for me in collage. Because of the AP classes, I was able to get my Bachelors Degree in two and a half years. To be a military jet fighter pilot you need to go thru Officer Candidate School, which requires a collage degree, preferably from a military academy, but a regular collage with ROTC will work as well. Did I mention that there is a little bit of a pilot shortage out there.
I realize that I am rambling on here, but hopefully gave some food for thought. A strong academic record is always great to have. Athletics could be a plus, depending what school you apply to, an engineering school may not really care about it but the military academies might. The apprenticeship program is a much better choice than an after school job. After all, not too many people will be able to put "I was one of 12 apprentices statewide" on their resume. Hope this helps. Good luck.