I learned incorrectly on my own. I got my grandfather's old Gillette sensor and a can of noxzema sensitive and a pat on the back. It wasn't too bad at the time, I was 12 and only really had a mustache, but by the time I was 14 it was awful. Then I turned 18 and Gillette sent me a fusion. The irritation wasn't any less and the cost was worse. I was looking for bulk cartridges on Amazon when I found derby blades. I didn't know DE blades were still produced, but the prices were awesome so I looked into the razors. That's how I found B&B and Mantic's videos, and actually learned what I was doing wrong and how to correct it.