How Long Did It Take You to Learn Arabic?

I was studying Arabic part-time throughout university, probably for a good four years. I got to the stage where I could speak relatively fluently and read quite well. So really just being somewhat disciplined over a large period of time,. say, something like four years. And I achieved quite good proficiency. This was all in Australia. I didn't go overseas to learn Arabic. It's kind of like, because you actually hear that a lot, Arabic is a very hard language. But we haven't reached that level yet. We also know that it's a language of jannah.