Don't try to get up, just keep your body in a good position and let the boat do the heavy work and it will pull you up without much effort on your part. If you want a faster and smoother way, just put the wakeboard in a 45 degree angle upwards and forward so as not to slide against the water and get up faster. But most important is still to let the boat do the work.

And how did you get rope burn? No handle on the rope?