I went to Army basic training back in the dark ages, when I was 18. We had one "older" (I laugh now!) woman who was 30 in my platoon. She was one of our best people--calm, able to handle stress a lot better than most everyone else, and a reassuring person to get opinions from. She had no problem doing any of the physical or classroom stuff that was required.
For the record, I loved basic training, and although I'd had a part time job, I went right from high school to the Army. Have a good attitude and it will be a breeze!
You make your choices, and you live with them. In the end, you are those choices.
"Strength is the mental and physical fortitude to endure, resilience to bounce back, and force to create change, allowing you to thrive in any circumstance and through any adversity." TrPAssassin