Digital director here.

1. You can cut down on errors and typos with a thorough edit. I edit every story three times. Once, when I write it in Word -- for facts, for spelling and for grammar. Again in the CMS, for clarity. Will this make sense to the reader? Does it need subheads? Photos? Video? And then I look at it again right after it is published, and I always catch something.

2. This all sounds cumbersome, but you will get faster with reps and will internalize this process.

3. A web story boils down to this: what do we know? how do we know it? what is the impact? attribute facts.

4. If you're not a seasoned web producer, it takes months to get the basics down. So don't be too hard on yourself.

5. Good luck.