Something with my technique or the water?

Everytime I attempt to catch a wave, it seems my board isn't moving at all from the spot! My nose is a couple inches dipped into the water and I paddle like my life depends on it before the wave catches up to me. But no matter how much I seem to try, it won't budge and I end up flipping over or getting swallowed and pounded by the wave. I don't know if I'm doing something wrong or if the waves were just bad. Any advice?