The most important thing in laguage learning is motivation. It has little to do with classes being canceled. Personally, I don't think that classroom environment is the most efficient one in learning languages this day and age. Physical presence in Japan is a little unrealistic, but the material is right before your eyes, text, mp3, movie files on the internet. I won't continue talking about pedagogical side of the iisue, but if you loose interest, nothing is going to work. And interest and motivation is not something someone convinces someone to have. It's totally up to you.