Make Cleanliness a Habit
You are always being influenced by your surrounding environment.
Being in a cluttered or dirty environment has a profound, if but subtle impact on your psyche.
So does being in a clean environment.
As for keeping yourself clean, this is an indicator of self respect, and self worth. Being unclean is an expression that self respect and self worth are lacking.
Making cleanliness a habit, both for yourself and your environment, is imperative to living more than a mediocre life.