I don't paint cars well. My mind is overrun by what I think it should look like, rather than drawing what I see with my own eyes. I've been watching YouTube videos of how skilled artists handle this challenge, and how to train my brain to just accept what it sees, and not draw what I think things should look like. Simply getting used to the idea of erasing incorrect lines, and continue erasing until you get the true line, ended up being a revolutionary idea to me. That, and remembering to keep looking at the subject while drawing. Such simple ideas but a difficult process for me.