I think you may still be missing part of the equation.
As noted in several other threads, your career choice (Combat Arms) is closed to new recruits until at least April.
+
To get in whenever it does re-open you need to be competitive, which means more than meeting the bottom end of the recruiting standard.
+
To be more marketable to the recruiters, you should have completed, or be in the process of completing, high school.
+
If your trade of choice opens April 1st, and if your recruiting process fits you in with the growing backlog of applicants, and if you're fortunate enough to make the cut, you will still not be departing for Recruit School on April 2nd
=
Go back to school now.
If a local school cannot fit you in starting with the January term, find a distance-learning/night school option. Use this time you have effectively.