Welcome and funny user name.
This is completely different for everyone. Some ppl pick it up that day, took me 3 full days to make it down the hill and not till the beginning of my 2nd year to learn to truly use my feet to initiate turns "properly"
So don't set a timeline in your mind. Get some good instruction so you don't learn bad habits that you will need to break later. This will also help/let you advance faster.
-I'm Slyder and I suffer from "Gummer Syndrome"