What is your goal? to just increase weight?
if i were you i would look at your technique 1st. take a read through this.
Phase 1: Setup (Prepare yourself by putting on your lifting apparel: shoes, shirt, singlet, belt, and wrists wraps, in that order. Chalk your hands heavily to get a good strong grip and your shoulder blades and butt to prevent any possible sliding off the bench).
Feet Back: Metal Militia Technique (First lie down high on the bench so that your head...