The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

If I knew where on the Wall
we were HEADING, I could tell you.
Game of Thrones Season 3, Episode 5

I'm HEADING that way. I can take you there.
Game of Thrones Season 2, Episode 2

about HEADING up
your sales team, and she said
The Big Bang Theory Season 12, Episode 13

We're HEADING
deeper and deeper into wildling territory.
Game of Thrones Season 2, Episode 2

- We're just HEADING out for a drink.
- Because I do that now.
The Big Bang Theory Season 4, Episode 19