Putting my Mama Me pants on for this one.
You are so far from a monster, I refuse to even allow you to ever say that again.
All she has ever known is you, being 3 is a really big deal and there's soooo many changes it's a massive adjustment period. She will get there, and soon she will go in and absolutely love life, she just needs to get used to her new surroundings. I feel for kids her age, covid has taken so much from them and made these sorts of transitions so much harder.
But a monster? You? Absolutely not. You are one of the most dedicated Mamas I've come across.
And you know fine well, if this was any one of us saying this you'd be saying something similar (though it would be far better worded than my waffle ever is)
Sending you big hugs Mama Me