Discussion on: Do you feel comfortable learning in your own language or do you prefer English? (For non English-native speakers)

I'm from Poland, native language is polish. I prefer to learn in the language that is closest to the topic. And for some topics, I prefer using both languages at the same time.
When reading about software development, English.
When reading press or about taxes - PL.
When reading about business, both, because I need to be aware of all naming conventions.