There's a detail that tells you right away if high heels will kill you

Buying new shoes is often like winning the lottery. You pick a ticket, cross your fingers, and pray that your number comes up. If you win, it means you'll wear the shoes until you get tired of them, as long as they don't kill you or become annoying when you walk.

However, the few minutes we spend trying on shoes in the store are not enough to guarantee that the shoes fit our feet and won't kill us.

The method you should use is very simple and only requires a little trick to find out if your favorite shoes will kill you or not. A few minutes and a meter.

All you have to do is measure the distance between the heel and the bottom of the front with a tape measure. In short, the gap that is created in high-heeled shoes. If that distance is less than 2,5 cm, the foot is forced to bend more, which means that this shoe will kill you until it adapts to your foot.
Whereas if the distance is more than 3 cm, the leg will remain in a normal position and will not be killed.