Building skill is quite often the result of hundreds of hours or repetitious training in basic movements. We hear stories of famous athletes who train hours every day. This will make nearly anybody into a skilled practitioner who can truly focus in this way.
Anybody who starts their kung-fu training this way is bound to suffer disappointment because few people have the stamina to do this instantly. One’s training should begin gradually. A habit must be created. To be realistic, one could use a timer to keep the time spent realistic. If you tell a partner that you are going to spend 15 minutes practicing, set the timer for 15 minutes and have a bell or buzzer go off at the end. This is your signal and everybody else that your training this morning is finished. Everybody has a schedule and you can do another 15 minutes later or not.