Gottogetbackon, I'm sorry to hear that you've had a rough time of it. I hope you've got lots of support so you can start putting it behind you, and that you can find some joy in rebuilding your relationship with your horse, if you feel able to. I'm sure I'm not the only one on the thread who's hoping you're too busy having fun to post about it here 
What you said about the naughty ponies back in the day made me laugh and got me thinking ahead to the next thread (when we fill this one!) - we'll have to call it something like 'Back in the saddle - get better or get bucked'!
Frouby, have you had that first lesson with your friend yet?
So pleased you also had a good return, mateysmum. I'm curious to know if you also felt like it was only yesterday since you last rode? For me, the decades were as nothing - felt like the most natural thing in the world. Quite odd, especially since I feel out of the game at work after a mere week of annual leave 
Looie, somebody remarked that the PC Manual is a bit dry. I'd tend to agree, but I'm finding it's backfilling gaps in my knowledge resulting from not paying proper attention as a kid.
Interesting that say you felt exposed on a more responsive horse. I was thinking that would be great after having to squeeze for all I was worth for an hour solid. For what it's worth, I think you're spot on having the goal of getting the basics right, and an instructor who will hold you to it is a very good thing.
Welcome to the thread, boxesoffrogs.
I found this when I was looking for inner thigh stretches. (How delighted I was to see that the first two are my favourite stretches ever!)
www.intrepidintl.com/inside-track/16-essential-stretches-for-female-equestrians/