I've got some habits I'd like to break. Not sure which one I should focus on first. I need to look at the neck a lot, which makes it hard to read when I have to keep glancing at my hand. Makes my neck sore, too. I also want to stop having to anchor my thumb on a pickup. I have a hard time playing some basses that feel very different from mine, and I tire my hand out fast when I have to spend a lot of time on the G string, because it stretches my hand out so far. So...is one of these things more crucial than the other? Both bother me and have made me play badly in front of people. But I only want to work on one at a time because I'm trying to get my practicing to be more focused and consistent.