how do i use protein mixes...

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So i ordered a package from bodybuilder.com for "lose fat" for female and my age range 20to30. I received it today with post work out, an optimum woman, two different protein shakes, fish oil and cla... my main concern is when to use the protein shakes...iv been trying to up my workouts to twice a day. I am a mother of two girls, I only work waitressing friday and saturday nights. I am trying desperately to trim my waist line. My workouts include elliptical, running a few miles outside,and insanity workouts ..not regularly bc iv thrown my hips out 3 times in last few weeks trying to do them daily. How do i use the proteins effectively to help me slim down ...the instructions were basically on how to mix them not when to use them...any info in this would be extremely helpful!!!