How do you break in shoes with out wearing them for a week?

I'm trying to break in a pair of heels that are a little bit narrow compared to other brands... Or maybe the other ones are broken in. I have been wearing them for a while when just chilling out. They are still tight enough to pinch a little bit and I know that will kill your feet by the time you stop. These are them and they are tight about a quarter of an inch towards the toes. Thank you in advance for your time and advice.