Thinset adhesive must cure for 24–48 hours before you can walk on tile. Quick-setting mortar can tolerate foot traffic in 6 hours. Walking on floor tile too soon can cause tiles to shift or come loose.
Sakura Haruno is a former member of Kakashi's Team 7 and her strengths were always known to be based on chakra control. Since Sakura is known to have surpassed Tsunade by the end of the series, it is unquestionable that she is a better controller of chakra as well.
In order to secure her survival to heal others, Sakura also develops superhuman strength by building up chakra in her fists, by storing a vast amount of Chakra in her body over 3 years, she awakens the Byakugō Seal, a jutsu considered to be the pinnacle of chakra control.