you need to do a lot of reading on the forums instead of asking so many obvious questions.
or go to the library and get some books on lifting. something to educate yourself more. you just don't have the knowledge right now.. hence why i told you to join the weightlifting team at school but you make excuses as to why.. if you don't have one then YOU get a group going yourself. take some initiative.
you aren't gonna learn by asking these lifting 101 type questions and you aren't gonna learn by watching mtv every night or whatever the kids are watching these days. put in the hours in the gym and watch others who know what they are doing. you will pick things up fast that way. when i go fishing and see someone catching fish its common sense for me to try and copy their bait, their rig, etc.