One of mine was a big sleeper, but the other sounds very much like your little one. They dropped day sleeps at 17 months (sibling was still day sleeping at 3 ½). If they day slept, they would be up until at least 10pm.
The problem with sleep issues is that it takes a lot of energy to try to change - and when you are sleep deprived yourself, you don’t have lots of energy. I know from your posts she attends daycare, but not sure if this is 5x week? If it is, you really need to have a conversation with them re day sleeps.
But, if/when you are ready, I would cut the day sleep. Your daughter will be tired and grizzly though - it gets worse before it gets better! Spend the time when she normally day sleeps with her doing quiet activities (reading a book, snuggling together, watching a calm show on tv, listening to music). This will cut into your worktime initially, but will hopefully get you your evenings back. If she isn’t day sleeping, try for bed around 6.30/7. Eat when you pick her up from daycare (even a snack to eat in the car on the way home, if she is likely to fall asleep on the drive home without it), bath, pjs on, lay down where you want her to sleep eg her bed/your bed/lounge, and look at a book together. You stay there even if she gets up.
I generally find that if you play with them/give them active attention then they find another surge of energy. Stay laying down, if she wanders off then let her/don’t say anything. When she comes back, give big cuddles again. **Of course, this planned ignoring for not staying in bed only works if your house is safe for her to wander in** As I said earlier, it takes time and energy to change! But having your nights to yourself again will be worth it.
