Help! I've made a horrible mistake!

I thought I would test out a Pixieset website since they were so pretty, but after weeks of trying to show up on Google and never showing up, I need to go back to the tried and true, well loved Squarespace website. I just want to go back to what I had for 15 years. So, I to set me DNS settings so that it is back to the original, is this correct? Will my website be back up and running after I wait the 24-48 hours?

We are glad you are back, up and running with your very good-looking "old" Squarespace site!  You can't go wrong here, especially using a Brine Template.