Whoa whoa whoa.
Hold the fucken phone.
Your toes SHOULD be hitting the end of your boots when you walk around. There are 2 ergonomic/kinetic positions for your body when you want your boots to fit perfectly. Standing and walking around your house are not these 2 positions.
Bend your knees over your toes, push your shins into your boots, and lower your hips like you are riding, both of em, like a little duck, like a heel or even toeside carve, see how ur knees are bent? Your heel is also sucking back into the heel of your boots, and pulling your toes away from the front of the boot. This is why your boot fits this way if it was sold to you by someone who knows what they are doing. The other situation where your boots fit well is when you are walking UPHILL. In this situation your toes will also be pulled back away from the front of the boot.
Does this help? If you can wrap your head around what I am saying, then you can evaluate for yourself what you really need.
Not being condescending, but the way snowboard boots should fit and be sold to us is somewhat counter-intuitive to the way we have been raised buying shoes. Different animals even tho they go on your feets.