Nothing Else Matters
There are times in your life where you come to a place where you have to discern what really matters and what doesn't. When it comes to the sanctity of your well-being and having a whole mental state, truly, nothing else matters except doing all that you must in order to maintain that state.
Of course, you have to put things in their proper perspective. You still have to live your life, handle your responsibilities, the "whole nine". This is where you learn how to better manage your life. As you learn how to better manage your life, you are able to better prioritize what matters most.
In your pursuit of gaining a more successful lifestyle, nothing is more important than you taking care of you. Sometimes you will come to a place where you have to be firm in your standing of your life's priorities and declare that nothing else matters. It will help you gain a more accurate mental focus and weed out all the things in your life that don't matter.