Take your carver to the park and ride the bowl. you can pump and get really back footed on your turns off the banks. Concentrate on the leading arm and extension out of your turns. Getting speed is all about compression and extension, once you've put yourself in the right place on the wave.
first u need to start with a good bottom turn on a proper size wave.iv heard a lot of people saying they cant get their carves down and its not that they are doing something wrong,its the wrong wave.its hard to carve a little 2-3footer which is usually mush.you need a nice clean wall to draw your lines.its all about angling your body,just watch any good surf video and youll see guys going into their bottom turn where half the board is sunk and their face is a ft from the face of the wave.you have to put your bodyweight in it and flow with it.for example,if your going to launch a huge carve off the top,you want your body to be perpendicular to the wave where all your weight it concentrated on the rail and its like your floating.sounds easy in writing but it takes time.you just want to get over your fears of wipeouts,they happen to the best of us.when your pushing it,u might take a few spills but It will pay off in the long run.
watch this for practice