One of the best things I ever did was to become a minimalist. Everything I own will fit into 2 boxes, 2 clothes baskets and one duffle bag ... Except for the guitar, and I can strap that across my back. That doesn't mean I'm not occasionally bitten by the jealous bug though.
But, when I think of all I had to sacrifice physically, emotionally, and spiritually just because I wanted to have more than I would ever want, or need, or even be able to use and enjoy, I'm glad I made the choice to disengage from it all because it's not worth all the anxiety, stress and worry.