Finishing School

I'm trying to finish my Master's degree during all of this corona chaos. I have a recital to perform and two classes that can actually be completed. All my other classes are performance-based, so they are grading us based on our work up to this point. I guess I got it easy, but now I need motivation more than ever. I have all this time to complete my classes, but I'd rather do anything else. Anyone have any tips on how to stay away from the phone and tv? How do I stick to a reward system, or keep myself from getting distracted by the internet?