I try to learn from the past, but I plan for the future by focusing exclusively on the present. That's where the fun is.
For any producer I've ever worked with, their toughest job is to convince me to not to obscure my vocals. A lot of people don't like the sound of their own voice on, like, cassette tape or something. It's like that for me, and other songwriters I know. Like, "Oh God, that's what I sound like?"