Scraping a Popcorn Ceiling

I've finally cleared everything out of Sofi Sue's room-to-be.

Now it's time to deal with that awful popcorn ceiling.  It is ugly and sharp and I'm worried that if Sofi isn't careful she'll scrape herself on it once her loft is built.  I sprayed water on the ceiling and let it sit for a couple of minutes.  Then I tried scraping it off.  It hadn't turned mushy and came off kind of powdery.  So I sprayed it again and let it sit for 15 minutes.  Same results.  I decided that I must have let it sit too long and it got dry, so I sprayed it a third time and let it sit for 10 minutes.  Still dry and powdery.  It comes off a bit, but the tutorials I looked up online all show it coming off in big wet glops.  Mine is flaking off and leaving quite a bit of texture on the ceiling.  It's not spiky any more, but it is certainly still textured.

Before Scraping

After Scraping

It's certainly making a big mess in the room.  The two options I'm considering now are to leave it textured but not dangerously spiky and just paint it as is or to buy something to smear across the ceiling to try and cover up the texture.  I'm leaning towards option two because I hate the look of the ceiling, even though it will end up taking a lot more time and effort.  But at least I'm finally on my way towards getting Sofia's room together!