Be bold when updating and creating pages. Wikis like ours develop faster when everybody helps to fix problems, correct grammar, add facts, make sure the wording is accurate, etc. We expect everyone to be bold and help make this a better site. How many times have you read a page and thought, "Why aren't these pages copy-edited?" Wikis not only allow you to add to, revise, and edit the article — they want you to do it. It does require some amount of politeness, but it works. You will see.
Also, of course, others here will edit what you write. Assume good faith; do not take it personally. They, like all of us, just want to make this site as useful as it can possibly be. Also, when you see a conflict on a page or its discussion page, do not be a "mute spectator". Be bold and share your opinion there.