Procrastination - Doing everything but study?

Finding it difficult to keep up with study demands. Doing a certificiate course, studying also for a government temp job coming up, apart from the usual housework, cooking, cleaning, etc., running my son to his various entertainments, looking out for Mum, etc. Need a quiet time to really get down and study (both) but it's just not happening. Also the train travel to course is taking over 2 hours a day and playing havoc with my back. The work involved in the course is not difficult but I could do without the distractions. I will also miss 4 weeks of the course with the job in August and will need to catch up at home. Any suggestions?