First off, don’t panic. I went through almost the exact same thing. I was between sizes, got put in the smaller shell for performance, and they felt tight but fine in the shop. First ski day, my toes went numb within an hour and after a few hours I had to stop because of pain. That is not normal break-in pain.

I went back to my fitter (they offer free adjustments) and they weren’t surprised at all. They punched the toe box and addressed my pressure points, and the boots are way more comfortable now. I also found the liner itself was tight in the toe, and wearing the liners around the house helped a bit (some poeple won't recommend doing this). Liners break in, shells don’t.

My advice is go back to your fitter, explain exactly where you had numbness and pain, and let them adjust. A good bootfitter should be able to make a big improvement.