My Satvia is massive, an outdoor grow which has got out of control 
Im a total newbie so didnt think about pruning or anything. Now my plant is pressed up against the roof of the greenhouse and i literally have nowere left to tie it to. I managed to pull it over at a 45degree angle but the branches grew and grew and they hit the roof aswell. Its planted in the ground and has a trunk about 2 to 3 inches thick so moving it isnt an option.
I have 3 clones that have shot up well in pots aswell.
My question is will it being pressed up against the glass completely ruin its flowering process? What can i expect to happen?
I have included sum pics i just took
Im in the UK aswell if this helps.

Im a total newbie so didnt think about pruning or anything. Now my plant is pressed up against the roof of the greenhouse and i literally have nowere left to tie it to. I managed to pull it over at a 45degree angle but the branches grew and grew and they hit the roof aswell. Its planted in the ground and has a trunk about 2 to 3 inches thick so moving it isnt an option.
I have 3 clones that have shot up well in pots aswell.
My question is will it being pressed up against the glass completely ruin its flowering process? What can i expect to happen?
I have included sum pics i just took
Im in the UK aswell if this helps.