Oh no, I'm so sorry you broke the website! Although, it's incredible that you kept it all those years. I hope you end up with something even better than what you had before.
Thankfully, Squarespace doesn't require coding but it's still pretty difficult to maneuver some of the UI just is the antithesis of intuitive. I'm just taking my time and am trying not to get too disappointed if I can't get a lot done in one sitting. I wish you luck in getting that done!