How to get over a feeling of regret and shock?

So basically I was at a youth grou p and this boy was calling cursing at me for so reason so we argued and this woman who was helping out didn't do anything so I told my dad and he came in and started like shouting at the woman and this boy (We've known the boy and his family for years, long story) And I feel like such a **** head for getting my dad involved I know I shouldn't have done it :/ Cause the woman got really upset cause my dad told her to 'crack on'.