Turning on a longboard

Hello again.
I've been out over the past couple of months still working on my turning.
When the waves are not too big but fairly friendly I struggle to turn and maintain forward momentum.
What I find is I am either far enough forward that I can get speed to go down the line but I struggle to get any turn tighter than a slight turn, or I get a little bit further back and I can turn very sharply but I lose all forward momentum so and up falling off the back of the wave. When it's bigger I can stay closer to the back and still have enough forward momentum to keep going.
I started watching some good long boarders when I was out and watching them nose riding and walking back and forth. Whereas I pop up and stay where I am but no matter where I try I cannot find a happy medium where I cab get good forward momentum but far enough back to turn a bit quicker.
Now I know I am not going to be nose riding or even walking around like them but is this what I should be moving towards on those smaller days to keep my momentum up but then still being able to turn quite sharply.
If so any tips or do I just keep trying to find that spot where I can do both from.
I've been out over the past couple of months still working on my turning.
When the waves are not too big but fairly friendly I struggle to turn and maintain forward momentum.
What I find is I am either far enough forward that I can get speed to go down the line but I struggle to get any turn tighter than a slight turn, or I get a little bit further back and I can turn very sharply but I lose all forward momentum so and up falling off the back of the wave. When it's bigger I can stay closer to the back and still have enough forward momentum to keep going.
I started watching some good long boarders when I was out and watching them nose riding and walking back and forth. Whereas I pop up and stay where I am but no matter where I try I cannot find a happy medium where I cab get good forward momentum but far enough back to turn a bit quicker.
Now I know I am not going to be nose riding or even walking around like them but is this what I should be moving towards on those smaller days to keep my momentum up but then still being able to turn quite sharply.
If so any tips or do I just keep trying to find that spot where I can do both from.