For me I would say do a cutting test on everything to make sure you getting your profit right
All of ths will help you http://forum.meatcuttersclub.org/t59259491/promoting-your-strengths-targeting-younger-customers/
Don't give away the farm.
Pay your rent and utilities.
Know how to lose money the right way.
Know how to generate and handle regulars.
Everything after that is gravy.
extra ecclesiam nulla salus