Learn from your editor

If you have other people look over your writing and you ask for editing/copyediting/proofreading work to be done to it, pay attention to the kinds of advice and help they provide and attempt to not simply make those changes but to understand the reasons for those changes as well. For example, if you see a lot of comma additions or deletions, don’t merely update your manuscript but take the time to say, “I am noticing a pattern here. What is the actual syntactical rule I’m not following?” Your editor will thank you the next time you present them with something to look over, as they will save themselves quite a bit of red ink if you have fewer errors with each piece you show them.