Go cut a couple lower branches and get your clones going now.
They will root faster if you do it before she shows sex.
you can keep a couple of clones alive and small for a very long time under one compact floro light inside a rubbermaid tote.
if this sounds like something youre interested in, just reply and i can give some further advice/instructions.
I grew 27 plants from seed in 1 tupperware tote. I them grew to bout 7 inches, sexed them, killed the males, then reverted back to veg. Then i cut 100 clones from my 14 remaining mothers, and nursed them in another tote. The whole process took about 4 months. I live in a small 1 bedroom apt., and both totes fit in one side of my tiny closet.
YOU CAN DO IT. Dont give up. youre one little girl gonna bring you a bumper crop next year.