You've probably already heard that decluttering can increase the chi (life energy) of your home and invite change into your life. And it's true: I have witnessed the biggest life changes occur once people get rid of clutter.
However, the process of throwing things away can induce stress, so we often put it off. Many people also struggle because they don't know how to get started and don't have an organizing system in place.
I used to deal with this myself. A few years ago, I have moved at least seven times over a decade, either temporarily or more "permanently," and each move was met with debilitating anxiety. Given the fact that I did not have a moving system and had had bad experiences with moving in the past, the stress increased each time. By the time the last move came around, I was a mess, and I knew something had to change.