I did the same some 10 years ago … left my job, took my little money and moved to the EU. I stayed there for 8 years then other places until some months ago. Best experience of my life, a major defining factor of my person.
I found work as a webdev for a seedy porn company. If you're at all computer literate, I'd suggest the same, work is easy to come by and decently paying.
If you can at all quickly exit cleanly (drop out, don't fail) from university, do that really really really. The newness of being a foreigner wears off the longer you're there. You can always transfer to another university in the future or reenroll (maybe) or whatever. But if you exit uncleanly, you ruin your life.
Personally, I'd say forget focusing on the language. I found, a large part of the value of a foreigner is in being foreign. You'll never be able to compete on a language / cultural level with locals, you're not a local. But if you capitalize on your strengths you drastically increase your value as a person.
I didn't tell anyone when I left, I just got on the plane and left. Not my family, not my friends. That was a mistake. I think, everyone would not had approved, but in the end ultimately accepted … and having that support is the best.
I think, it is really important to sit down with yourself and really examine exactly why you want to do it and then be able to vocalize it to others. I felt once I had done that, it made my life much easier. Even stupid reasons such as "grow as a person" are OK, but it is a great milestone to be able to clearly articulate where you are in your journey.
Lastly, I found that the first year, or 2 years were amazing. Years 2-3 were meh, then bad. Many of my fellow foreigner friends had the same experience. But your experiences are your own.
Have a good time.