I took on a similar shift last year, with a similar drive to cement my grasp of a few languages. Depending on your location, I cant recommend highly enough looking for a hotdesking site if there is one nearby. This will not only break up the monotony of your house, and provide a clear "work/play" separation, but will stick you in with like minded people / freelancers who may be further along the process. This "productive socialising" hits two birds with one stone, accelerating your learning and keeping you sane!