How to progress from whitewater to greenwaves?

Hey guys
So been taking lessons and am now doing really well in the whitewater on a 7.0 funboard. Went out the back the otherday and it was much more of a challenge. So how do I go about progressing from surfing on whitewater to surfing on greenwaves out back? Is it more about practice, wave choice and honing your techinque, turns and stuff?
Cheers
So been taking lessons and am now doing really well in the whitewater on a 7.0 funboard. Went out the back the otherday and it was much more of a challenge. So how do I go about progressing from surfing on whitewater to surfing on greenwaves out back? Is it more about practice, wave choice and honing your techinque, turns and stuff?
Cheers