pay attention to the room.. look at what people want.. my first gig i lost my headphone jack.. i now carry a spare house party or club? i never have and never will plan my sets, it's all about reading the room & direction in a club. some plan & it works, do what you feel comfy doing.. honestly you will be shit scared, I was! write down your big tunes, or move them to the front of the cd wallet, tunes that will pack a floor, try not to play them all first! one after the other! you wont have anything to peek the room on, leave them something to remember you by. just think of it like having sex, you want to take your time till the climax... not be over before it begun lol.. good luck.