Your friend isn't very friendly in that he has given you a substance of which you seem to have no understanding of its proper use. You also seem to have a poor grasp on nutrition and exercise science in general. I strongly suggest you research and research some more about nutrition and exercise science , then once you think you know enough research some more. Then after you got that down start researching gear, then once you think you are ready for your first pin, research how to go about getting it for a few months.
Not being a dick but I don't think, given your current level of understanding of any of the matters involved with gear use and exercise etc, that you will see the "gains you need".
No, I dont take it as you being a dick at all.
I looked for a good source of info because I feel most the gym rat people I know have never taken the time to research anything.
About gear, I admit, I have no grasp. Nutrition a pretty firm grasp. Exercise... Well not as much as most of you, but a learning well.