Place your fist against the wall or in the static push up and push one finger at a time into the wall and than into the fist. Breathe and relax all the other fingers as you do this and gain more density in the fist along with a better way to deal with the impact on uneven surfaces. Place the fist on your body and do this again and see how you can feel more where to go in as you strike or press. For example instead of hitting the side of the neck with a fist you can lever all the tension to the blood vassals on the side (don’t believe me, check with your own neck) and end the fight much faster if you are against many. Remember the big picture and that you have to go home from time to time.