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.

But your expectations
are REALISTIC.
Breaking Bad Season 4, Episode 5

I'm gonna be more REALISTIC
and go after someone my own speed.
The Big Bang Theory Season 1, Episode 3

...in a way that looked
REALISTIC at all."Punch you."
The Big Bang Theory Season 12, Episode 24

How about
something a little more REALISTIC?
The Big Bang Theory Season 9, Episode 11