Step 2: Making a Last
We need to make a last before we do anything.
A "last" is a hard, usually wooden, object that shoemakers build their shoes around. Lasts look like feet, with extra space in front of the toes to accommodate the sleek pointed style common in shoes.
Lasts are important because they allow you to accurately draw your patterns, give you a harder surface to work with, and they also provide a quick context when you are unsure.
Here you have two options:
1) Buy a last: ask a shoemaker or do an Internet search (these are not expensive)
2) Make a cast of your foot and augment that.
I'll teach you how to make your own lasts, but if you choose to buy some, they aren't very expensive.