17.

If you learn a punching technique in your dojang, try the complete reflection on it; whether you can defeat your opponent with it. If you cannot be sure you can make it, go on your exercise of it untill you can be sure.

Repeat the motion. Correctly and Fast.

If you cannot see if it is correct, just go on fast repetition of several hundred times. One thing more! Think what point of your opponent you are attacking. Add another basic training if necessary. Push-ups, low-walking, low standing and standing up and down on one leg will be basically helpful.

If you can punch as your mind goes, if you can attack the exact point as your mind wants and if you can concentrate entire motion on your punch-tip, it can be said you completed that technique.