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.

Sheldon, sometimes people seek the COMFORT
of physical contact in moments like this.
The Big Bang Theory Season 6, Episode 21

l know that this kind of thing
is outside your COMFORT zone--
Breaking Bad Season 4, Episode 8

Bit of COMFORT never hurt anyone.
Game of Thrones Season 4, Episode 7

I don't care. There are far too many
historical anomalies for my COMFORT.
The Big Bang Theory Season 2, Episode 2

Look, I know this experiment is
a big step outside of your COMFORT zone.
The Big Bang Theory Season 10, Episode 4