Progress really depends on each and everyone. You will of course make progress in your Japanese abilities by attending our classes and completing any homework and exercises your teacher assigns you. However, you can progress much faster progress if you also practice outside of class, find some Japanese friends, watch Japanese TV or anime, attend activities with locals, etc. One of the best ways to make great progress is to live with a homestay family, as you get to speak Japanese on a daily basis in a very immersive environment. Progress can be as fast as you'd like it to be, you only need to put you out there and practice as much as you can.