Discouraged

I'm at one of my jobs, talking with a coworker, and the subject of future plans comes up. I mentioned my urge to consider the certification in professional organization because of my experience with my parents. He told me about his sister-in-law's situation, and I was glad to have someone to talk to who has hoarding in the family. When I confided how torn I am about staying to help my parents, and just moving on without looking back, he gave me his opinion. His advice was to leave and not regret anything, let them fill their graves with stuff and sit in it. As much as both options can be argued, the option of walking away suddenly sounds cold and heartless. When I was a baby, they didn't walk away from my dirty diaper, why should I walk away from their dirty house? There isn't so much as a single clear or easy decision in this whole situation. Everything is dependent on another decision or action. One layer must be supported by the foundation provided by another, but that can't begin until a third layer is planned out. There seems to be no good or right way to go about this, and I'm starting to wonder if I will get the courage (in time) to face my parents. Hopefully I will find some outside resources that can point me/my family in the right direction.