My unpaid and abuse

I was a part time worker at Clearwater mall I worked my Hardest and did my best an worked every day even when i was off and was treated badly days i walked home trying to better my future i stop working there in January when my contract ended and still haven't got paid my overtime i really wish i could get my money as im currently unemployed and go nights without food its 3 months that i have been calling all mangers and leaders