Perhaps you're in that same position this year. There's so many factors up in the air during this process. Will they have a position for you? Will you get a high enough score on your ASVAB? Will your medical history hold you back? Will they find something wrong with you at MEPS?
One thing you can and must do is to get in shape, if you're not already. Not a runner (like me when I started - I couldn't do a mile nonstop at this altitude )? Well, it's time to become one! Being in good physical shape is a requirement for the military, and plus, it's going to make your life much easier while at BMT if you go in there with some level of conditioning under your belt.
Not sure what to do or where to get started? If you're one of those individuals that needs a plan that you can follow, versus trying to come up with something on your own, you're in luck!
Designed for those already in the Air Force, the Fit For Duty program of conditioning is meant to prepare you for your fitness assessment.
In addition to a detailed training regime listed on their website, there are step-by-step pictures of each exercise, a downloadable Exercise Library PowerPoint of the workout routine (183 pages!), and twenty-six YouTube videos to accompany your training. Pretty dang comprehensive if you're looking for some direction in your fitness routine.
Enjoy and Aim High!