Moses’ hot tempered reaction to the people’s sin left the law of the Lord shattered on the ground.
Soon thereafter repentance came. Forgiveness was sought. Grace was granted.
Moses trekked up the mountain a second time to obtain the same laws he had just broken. 
The same exact words were given. Same exact materials were used.
Moses’ showing of disrespect to the law did nothing to sway what the Lord would write the second time around. It didn’t cause the Lord to make the commandments more lenient, nor did it cause him to make them stricter.
Because who God is and what He stands for is eternal, regardless of our reactions. 
Take comfort in knowing that in this world there is always a constant: Jesus. He will never manipulate the commandments to satisfy your flesh but He will always offer grace to begin again.