Some writers can't spell well. Some use huge scientific words that may be acceptable to a certain audience, but offputting to another.
Maybe you don't find your own writing compelling. Maybe yours just doesn't seem to measure up to others, at least in your mind. It doesn't matter. Don't be tempted to copy others. Learn from them, but don't copy them.
Do you. Write what needs to pour out of your brain. Release your gift through your fingertips. Just get it out. Put it in a blog. Write an online article. Write an X or Facebook post. Write an ebook, or novel.
---Side note: Do you watch X-Factor or American Idol? If so, have you caught on that it usually works against a performer? This includes choosing to do Whitney, Adele, or Mariah's songs. You will be compared, so doing well-known songs of popular singers is an unwise choice. Don't try to copy popular authors.
WHO CARES ABOUT WHAT YOU HAVE TO SAY?
Do you fall into self-doubting thinking you're a nobody? You can't possibly know who will come across your writing and find it helpful, entertaining, or educational. While it helps to write for the reader you are picturing remember, that there is a wide pool of readers out there.
I just read an editor's critique for a writer trying to put together a fiction story. When I read the editor's version, she'd added in things the original author hadn't said or even hinted at. Yes, the editor's version was more compelling, but if the writer uses the editor's suggestions, doesn't it change her story? Doesn't it make her inauthentic? What do you think?
DO YOU!
I'm trying to say, don't get caught up in following all the rules or trying to write a book with the focus of it being to sell tons of copies. Simply write what's on your heart.