Yes to reading a lot.
Make sure you rewrite your own prose. Rough drafts always suck. Whisper that to yourself over and over when you're feeling down about your work: rough drafts always suck. We can talk about the exceptions but the phrase is so much more useful as an absolute because please, on the miracle day that a paragraph in your rough draft doesn't suck even a little bit, you will know! You can get up and dance on your desk, it'll be great, but till that day rough drafts always suck so don't even worry about it. The rough draft was you cutting your way into the jungle of story with a machete, and now you can go back and dig the soil and plant incredible flowers along the path. Or, you know, start with hostas, that's fine. (OK I guess they don't like a jungle environment, this metaphor is breaking down, the point is, start with flow and clarity before you get fancy.)
I really do mean rewrite. Don't tweak it, don't go in and change a sentence or a phrase. It really helps me when I understand that the words are not the story. The events are the story--the bones, the structure, what actually happens, that's the story, and that's what you use the rough-drafting process to create which is why it doesn't matter that the rough prose sucks. And once you've written it the bones of the story are pretty much in your head, but yeah, keep your eyes on the rough draft as you rewrite so you won't forget anything, but you're going to throw it away at the end, it's just a blueprint. So either open a separate textfile or press enter ten times in your same textfile, and get a blank space in front of your cursor. And then write a new scene while looking at the old one, a scene that follows the same outline and probably keeps some of the best lines of the old but also flows and sounds way better--not because you followed the rules and did it right, but simply because, now that you know how the story goes, you can be thinking about the words. Cover the bones with something pretty--or at least healthy and strong. Which is pretty, so what the hey.