I found the best method is to pick one course and just do that one till its done. However long it takes. Starting more than one is impractical. They have different ideas that sometimes conflict. Mostly having too many started courses and life to contend with makes it overwhelming. You wind up shoulding yourself on too many courses; I should do course a, then you think of course b, c and d and suddenly you need about 5 hours to get through the courses in a day you only got one so which one do you need to get going on? Procastination becomes an easy alternative since you need to guess which course would give you the greatest benefit if you continued.
Also I found that finishing one course and allowing time before starting the next one led to the natural progression of which one I wanted to do next and made some unnecessary.
Alex
