Weight Distribution

I have been getting some solid surf sessions in recently, My local spot, breaks in chest high water so when im tired it ends up with less paddling and more pushing, but i catch 90% of my waves and am really starting to get a feel for my 6"3 7s Superfish ( the more narrow / hybrid one with some rocker ).
I'm still taking off straight towards to shore, but i feel like my board requires this? its very nimble board, when i take the drop and bend my knees into the drop to get some more drive and lower my center of gravity and lean in for a bottom turn, 75% of the time my nose sinks into the water and i wipe out sideways.
What is the reason for this happening? my brain is telling me that its my weight distribution and im leaning to far forward, Should i be digging in the tail a little? When i get the turn in i can tell I'm doing something different, what i cant quite figure out. What i do after a bottom turn i not figured out yet! trying to get lessons from the local surf shop is a nightmare they never reply to messages. So for now im still stuck teaching myself.
One other issues, Green waves. Ive caught some, but again im not quite sure how. On a shorter board should i be forward more, arching my back more to keep the nose out and dropping my arch a bit to get down the face?
Its coming along nice, my confidence has grown. Lower back pain has subsided and my pop up is becoming more reflex now, i get some waves i would never of got 4 months ago, im just facing 'technical issues'.
For anyone reading this with lower back and hip pain issues, i cant recommend surfing enough its a amazing.
I'm still taking off straight towards to shore, but i feel like my board requires this? its very nimble board, when i take the drop and bend my knees into the drop to get some more drive and lower my center of gravity and lean in for a bottom turn, 75% of the time my nose sinks into the water and i wipe out sideways.
What is the reason for this happening? my brain is telling me that its my weight distribution and im leaning to far forward, Should i be digging in the tail a little? When i get the turn in i can tell I'm doing something different, what i cant quite figure out. What i do after a bottom turn i not figured out yet! trying to get lessons from the local surf shop is a nightmare they never reply to messages. So for now im still stuck teaching myself.
One other issues, Green waves. Ive caught some, but again im not quite sure how. On a shorter board should i be forward more, arching my back more to keep the nose out and dropping my arch a bit to get down the face?
Its coming along nice, my confidence has grown. Lower back pain has subsided and my pop up is becoming more reflex now, i get some waves i would never of got 4 months ago, im just facing 'technical issues'.
For anyone reading this with lower back and hip pain issues, i cant recommend surfing enough its a amazing.