I am so glad you are seeing some progress with her settling herself at night. It is amazing what these little humans can do.
I know what it feels like to need permission or reassurance. Sometimes I know the answer but I need to hear it from someone else that has been there.
PU PD is often used to break a sleep association or start out with sleep training, but you may be able to move to a gentler approach as PU PD can have some hard crying.
To be honest, you are right there now. PD awake, allow her to try to settle on own (my LO would kick her legs, scratch mattress all sorts of strange things), if she starts to cry start with "shush" (touch/rub) until she calms down, then slowly try to retreat. If it starts up again resume. Only PU if crying escalates.
Be brave! Letting her fuss a bit is ok. If it is killing you to let her fuss. Count to 15 before interveening, then next time count to 30 and so on, as long as the fussing does not turn into crying.
To be honest sleep training is just as hard or harder on parents than babies.