Resist the temptation to get sloppy with your form just to get the weight. I know that this sounds like very general advice but from my own experience doing a powerlifting routine for most of my early 20s, it could have saved myself a lot of grief down the road.
Example. I used to love to squat and I never ever wanted to only get half a rep....so I would let my form slip a little. I was very hard on my back and now I have real issues....one back surgery and a ruptured disc right now. Just remember to be very tight on your form and resist the earge to be superman on every set.
Good luck and have fun......it is a real rush pushing heavy weight!