Longest 30 minutes of my life

Have you ever kickboxed? It is not easy.  I went to a class previously and thought the guy teaching the class kicked my butt. I walked in today and met Railyn. Railyn is in shape. Railyn kicked my a** for 30 minutes straight. I started feeling it about 2 hours after class. Now it feels like my arms are going to fall off, my back and shoulders burn and my legs are like jello.