LIFE SUCKS

i quit my job!!

so i quit my job working as a cashier, because my boss was such a mean person. i literally worked my ass off, i would take shifts for people, on my days off if they called me in i wouldn't even hesitate to come in, i did everything they asked me to do without attitude but even being a nice person and doing what your told gets you nothing. my boss would trick me into believing her just so she could get me into trouble or she would yell at me for no reason, she was just verbally abusive to me and i just couldn't take it anymore. i only worked there for four months, and Ive had a couple interviews...but nothing i don't know what to do anymore. so i was wondering what i should say, should i change my story as to why i quit idk what to say anymore. i need help!!!!!!!!