I know that this is an old thread, but I figured I'd still answer it on the off chance that you're still on this site. What you're experiencing is called delayed onset muscle soreness (DOMS), and it's perfectly normal. When you first start working out, you're going to be incredibly sore the next day. Over time, your body will become used to the movements and the soreness will diminish until it's just background soreness. It's basically just a waiting game. You should only experience slight soreness once you've gotten through the first week or two.