I have just covered this issue in Uni.
you need to avoid doing deep squats and should be instead crawling around on your hans and knees in the knee to chest position. Ok I shall try and describe it.
When on your hands and knees, stick your bum in the air, to tip the baby back up out of your pelvis so that there is more room for her to turn around. they recommend that you do that for about 30 minutes a day, if she continues to stay in the OP position. Put your favourite music on and go for it. Let me know if it works so that I can report back .
the other thing is to sit at the edge of your seat upright without back suport and not lay right back into it, apparently these OP positions are a result of our lazy boy type chairs. Get on a birthing ball this helps too, or even try sitting back to front on a upright chair. And when you do go into labour, stay off the bed!!! Move about, deliver on hands and knees.

by all means try to get that darling turned around, but a bit of comfort- LG was facing back and if anything it was faster & less painful than JI who was turned the right way, so it's not the end of the world, especially for someone as fit as you seemed last weekend! an experienced doula/midwife/massage therapist may be able to manipulate baby the other way round, but boy, that is an ordeal in & of itself!

stairs....lots of stairs