Man U fucked up just wildly buying and altering size to get last
that said if it were me I’d find a good BOOTFITTER for possible fitting and suggestions and educate myself as well
I just “purposely” bought boots that were “too small” , last only , perfect fit for length bc previous boots were too big bc i bought wildly before learning after having a boot that was way too small , but anyway they ARE the right shape for my foot and my boot fitter has turned them into high performing foot gloves my 104.75mm lasted foot in a 100mm 130 flex boot and I’m comfy and warm skiing longer days than ever
You don’t wanna start off comfortable and NEVER oversized , it’s easier to expand than shrink and pad for support
boots your most important piece of equip makes or breaks everyday in the slopes !