One of the most important realizations i have made is, how other people setup their bass, dosent work for me. I don't play we'll with the bass super high, but also can't play alot of Chords Hammer on's etc, we'll with it too low.
Finding that sweet spot was important, and that was practice, playing with a band makes you stand. it also makes you play standing for a good period and it is what helped me the most. Now when i practice i tend to walk around aimlessly. Another big one (for me) is, start singing.. If your singing into a MIC you can't look at you the neck of your bass, and need to know where you are without losing yourself.