Ordered my usual size but they are so large my feet fall out. I will have to return.

I’m a size 7.5 but in heels 8 I got purchased a 8 and they fit comfortable but when I walk they slip. but I don’t think if I return them for a 7.5 that they will fit correctly. I think best option is slip grips, hopefully they don’t ruin the inside. they are such beautiful shoes. highly recommend! color is amazing! I suggest ordering normal normal size if you have wide feet and sizing down a half size if you have narrow