How do i get rid of the regrets in my life?

seems like i always hold regrets and bad feelings towards people ,especially my family members ,although they sometimes hurt me ..its never serious enough to continue the bad feelings i harbor towards them ..it makes me feel bad ..i feel so vindictive at times over things that aren't even important ..im not a mean person i just cant get things out of my mind and just keep dwelling on them daily ...am i losing it??