In this life we are naturally attracted to pleasures and someone who wants to make tshuva cannot just stop having those pleasures and start a new life with the intellectual knowing alone, your heart needs to be with you too as an ally, the head is not enough. The process of Tshuva is like getting to know and overcoming your addictions by reprogramming yourself to a new pleasure in life from the heart, pleasures that better serve you.
Rosh Hashanah and yom Kippur are representing two ways of making a change and tshuva in life, in order to get to the happiness and clear our minds in Sukkot and Simchat Torah.... During this month we have a mission and an opportunity to to clean our thoughts, make new thoughts, step out of the old and into the new.
Your currency in this life is your commitment, do it because you want to do it, not because you need to.