Hey all!

I finally got access to a weight room again, and I am super excited. Starting Wednesday I'm going in and starting the Stronglifts 5x5 program. My knees are strong enough to handle weighted squats, and deadlifts. My arms are strong enough to support my weak wrists. I am ready for this, finally, after a year of bodyweight strengthening in preparation!

What I want to know is this: You lifters out there, what were the top 5 mistakes you made when you were new to heavy lifting that you wouldn't want someone else to make? This can be anything from "don't injure yourself by doing this dumb thing" to "don't be that jerk in the gym who does this dumb thing". Pain, embarassment, ignorance, etc. I want to hear all the stories! Help a new lady lifter to success?