Well for 1. Your flowering time mate starts when u see stigmata not when u switch to 12-12.
Ur 1st few weeks flowering. (When you switched to 12-12 that's the time you should of been adjusting the plant underneath the net. Only when your plant shows stigmata is when you let the nodes grow naturally above the net. They're too high and ur net is too far down to get a proper scrog.
I'd take that net off. And just open up ur plant you've 4 big colas in at the sides, its meant to be an even canopy of buds. So, you'll actually get a better grow by opening her up with good LST and rotating the plant and moving the nodes allowing light deep into different parts on different days will give you much more bud for your end result.
Good luck