Pick your desired mode and start climbing the ladder. The first step is one day long, the second is two days, and so on, the last step being fourteen days. If you can make through a step without a reset, you get to the next. Otherwise, start the ongoing step again. The steps make 105 days in total. Try to finish them with the least amount of "lives". Sharpen your "why" in the beginning of every step. You can give yourself a little reward for each completed stage if you like.