Welcome aboard, Abby! Really appreciate you taking the time to explain yourself! Figuring out the whole Medium world can be a lot, and even nearly two years in I'm still making constant adjustments to my whole battle plan. If you have any questions I can try my best to answer! I think it's wise not to spread yourself too thin. I've run into a bit of that problem myself. Though I'm listed as a contributor to about 70 publications, there are only about 10-15 I really consider contenders for most submissions. Hope that helps a little!