An English-speaking friend of mine told me how he tried this once:
On arriving to the office, he would spend the first thirty minutes speaking in Spanish only to the native Spanish speakers.
However, after a while, they dropped the practice because it was slowing down work that needed to be done.
I think they were doing an awesome thing.
If it’s too hard to communicate when you really need to, that’s the point!
When you’re faced with no choice but to learn (or do, or change, or make it work) you will.