When I started out. I didn’t have a cent. So I made a drawing,expanded it, used a ruler and did a “measured” drawing. And cut. Now I put a different step in before I cut. I make a pattern make sure it all fits together THEN I cut leather. I have a few bucks now bet I still make my own patterns. Wallets, card wallets, purses, messenger bags, keychains, you name it. Try it, see what you did that you don’t like and try again. But what ever you do... have fun.