Do you have a pool? Try putting your surfboard in the pool and tieing off the leash to something stationary anywhere around the pool. Then get on the surfboard and paddle your little heart out. This will help train your back and arm muscles so that you can paddle harder, surf longer, and wont be as tired when you really go surfing.

Now, I like surfing but I would never do this. :lol: It's just an idea because there really isn't too much you can do at home to help you. The best surf practice is to actually go to the beach and surf. If youre crazy enough you can try this, it can only help you.