Gong-Fu (Kung Fu) (功夫) cannot be achieved in a single day.
After a long period of continuous hard work, one will develop some Gong-Fu and the longer one endures this process, the more Gong-Fu one will acquire.
Just like a lump of iron ore smelted and hammered day after day, it is gradually transformed into pure steel.
Besides using a correct 'method' from a competent teacher
*The ONLY shortcut is to be consistent*