Here is a specific work for you to taste on pack work:
Start by Standing with feet closed in a 90 degree angle between them. Rise to your toes and as you inhale drop down and bounce back up as you exhale. Repeat 60 times
Lean your hands on the wall or a partner and walk down and up 10 times.
Turn away from the wall and do the same work walking into a bridge and back.
Place both palms on the top of your head and place them on the wall with two steps away from the wall. Tilt your head in the yes movement 60 times. Turn to face away from the wall and repeat. In all movement let the breath lead the movement.
Place your hand on the ground and keeping your body as straight as you can walk the feet around your body like a chopper allowing the connective tissue in your middle to open and relax as you stabilize just as much as you need 10 times each way.
Place your pack on the ground and using just your feet roll it in front of you 15 meters in front of you and then stand before it and push it behind you 15 meters and use no momentum. Learn to use all the muscles and joints of the foot and leg to get the job done and to drive without tensing the upper half without any need.
Place the pack on your back and walk back and forth on your feet and hands. Remember to move from the body and fatigue the limbs as little as possible!
Place the pack on your back and squat down all the way while keeping the feet flat on the ground. Shift your mass from foot to foot and gently lift one leg at a time and move it to the front and back. Continue to shifting your mass forward after the leg learning to move up and forward with your body without dragging feet or pushing with the feet. Move from the hips. Shift them and let the legs do the movement without mass on them and then let the mass roll to them!
Stand with your hands on your hips and shake your hips letting the tension flow from you down and out.