Frustration in Meeting a Goal

I've met so many goals already.  I even meet goals and deadlines all week long.  But I am having such a hard time meeting this goal of downsizing what is left of my possessions.  I can put it as the first thing on my priority list, but I sabotage it because I am so absorded in earning an income, and building my business that my energy gets waylayed on a daily basis, and all I seem to be able to do is plan, work, come home and rest.
Further, this downsizing is not fun to look forward to. All of my heirloom possessions got brutally stolen, and I was left with nothing.  I don't have a lot, but what I have to go through is mainly just junk, and not fun. My goal is to keep my possessions to a minimum, but enough to keep my business going Furthermore, this is one of those "last" final downsizings.  I am 68 and it is time. It is just such a downer, and full of triggers because I deal with PTSD every single day of my life, and have for over 56 years now.  I have to go downstairs into a dark dank basement, in a home in which I rent a room, because I can't afford a place of my own yet.  
My actions get stuck in moving forward without taking time to sort through the very painful past.  Sigh.