I’m flying soon to BCT and AIT to become a medic in the Reserves. Do you guys have any advice? What character traits should I pursue?

Finish bct first. One step, week, day at a time.

You only need to know one thing: you are all part of a team. Let go of pride, ego, and all preconceptions. That's what will get you through BCT.

Always be the one willing to help their battle buddy, put them before yourself. You will be known as a good soldier if you do this and form good relationships. Don't worry about basic. AIT, be a sponge. Don't just study to pass the tests. Absorb as much as you can. Don't pass with 70s. Study hard. This knowledge is going to stay with you for the rest of your career, and carry on to your casualties. Don't be known as a dumbass. Apply yourself and learn as much as possible. And in San Antonio, go to LuLus and order the three pound cinnamon roll. When things get tough in basic, think about the cinnamon roll.