My three weren't great sleepers and it is tiring. I could never leave them to cry as to me, it was a sign that they were scared/unhappy and I didn't want them to get the message that if they cried, I didn't come. I wanted them to know I was there for them no matter what. This comes from my own childhood of feeling unloved etc etc.
What's happened has happened so put it to the side. What's important from now on is what you do from here.
Mine did not need much sleep and putting them to bed at 8 would have been useless because they just weren't tired enough to sleep so often they went to bed when I went to bed, 10.30/11ish some nights.
They also weren't big on afternoon naps, it was never really a thing, they maybe dozed in the car or occasionally on a walk or in the pram but after a couple of months old, I honestly can't remember them ever going to bed during the day for a nap.
There's no right and wrong is what I'm saying I suppose.
Children like adults need varying amounts of sleep.
Just because people talk of afternoon naps and bed by 6 or 7pm doesn't mean that's right for everyone.
Try to really pay attention to when she naturally becomes tired and work your wind down, bath, story, snack, toothbrush routine around that.
Maybe a new "magic" bed cover or teddy to mark the start of the new routine.
Explain to her what's going to be happening and how exciting it's going to be because she's going to learn to go to sleep without a fuss.
Stay with her silently until she drops off. Ignore any behaviour that you don't want, don't get drawn into rows or conversations and she'll soon get the message. It's not easy but it'll work.