GPA is competitive + STEM degree. You're good there, just don't let it fall. No, your volunteer stats are sufficient. You should aim to get a PPL at the very least and as many hours as financially possible. If you can afford to keep flying after PPL, get your instrument rating. So that's the good.
Your AFOQT is sub par. Find a highly rated AFOQT study book on Amazon. Shouldn't be too hard, you're a data scientist, no? Formulate a study plan, take the test over and over again. Timed. However, I wouldn't take the AFOQT until after you take your PPL written. It will help your pilot score tremendously. And then take the TBAS.
I'm not even going to comment as to why you'd consider active duty over ANG / AFRES. To each their own, but who wouldn't want to be able to pick their airframe and their base?