Life Lessons repeated until Learned, unless expecting it

there are 2 types of trials illustrated in this song. 12 jingles represent expected exams in life (not school) these test discipline, consistency and long term planning for example next year i turn 23 and it sounds serious so if i don't prepare i will be a failure forever. and the 8 echoes represent accidents and unexpected trials these test fast thinking and adaptation, usually you dont notice them only after they happen. for example not replying fast enough or preventing much bigger problems.