Yes. Yes, I do:
1. Do. Not. Rush. If you get a burst of inspiration and write a whole bunch in one night, fan-freaking-tastic, but don't set a deadline for yourself. Writing is an art and art is something you take your time with. Go back and re-read once in a while as you're writing, make sure you really -like- what you're creating and that every piece of the story fits.
2. Don't you dare post right after you've written the last word. Take a break first. Then ...
3. Proof read. Take another break. Proof read -again-. Run it through a spell checker. Ask someone to check your work. Ask -another- person to check your work. Yes, I'm seriously suggesting you do -all- of these, but do at least two of the above.
-_- You will think it's ready after just one of the above, and you. Will. Be. Wrong. You will never catch all of your own mistakes, especially just after writing a bunch of words, because your -brain- knows what you've written and it -will- trick your eyes into thinking everything is perfect because you're focusing on what it's suppose to say, not what is really there. That's why you've -got- to either take a break to adjust your perspective, use a program, or ask someone. (But it's best to do all three.)
4. Go back and actually -play- your game. Don't subject us to something you wouldn't play yourself. xD Besides, you can find errors that you wouldn't see otherwise. Also, when you play it, I suggest you do something you probably stopped doing somewhere around 7 years old or so: Pretend. Only, don't pretend you're a knight or a dinosaur, pretend this is not your story, pretend you're reading it for the very first time, and while you do, critique it like so:
Ask yourself if you like it, and why or why not, does it makes sense, does it flow nicely, is the gameplay convenient, are the characters likeable, relatable / understandable, does it feel like your choices are really affecting the world around you, so on and so forth.
No, you'll never be objective about your own story because you're human, but -try- and you will be a better writer -and- beta reader for it.
5. Polish it. If you noticed an issue, fix it. If you notice something that is (unintentionally) inconvenient to the player, change it. Realize a character sucks? Remake them or scrap them. Don't be afraid to trim the fat of your own work and don't be afraid to ask for help doing it.
(If you don't notice or find a -single- issue in your -entire- story, either you're Jesus / some other god-type figure ... or you didn't actually get another writer to critique your work, in which case, do that now.)
6. Proof read. (Yes. Again. After you made those changes, you ought to make sure they turned out right.)
7. Relax. So, after all of the above, the writing, the proof-reading, the playing, the proof-reading again, the polishing, the oh-my-god-proof-reading-AGAIN ... relax. You've made a piece of art that is -your- creation and regardless of what anyone says once you post it, you put a lot of hard work into it and you should be proud of it. Congrats. All you need to do now is publish and kick back as everyone enjoys the fruit of your labors.
(P.S. Juuuuust be sure your tags, category, maturity level, and difficulty level are correct, too, mmkay, champ?)