Decluttering utilizes your decision-making and problem-solving skills: You've got Y amount of space and X amount of stuff. To make everything fit, you need to make reasonably quick decisions about whether to keep or discard items, and where to put them. Start this task, by creating a list first. Write down everything you plan on organising. Once you're done, start checking things off your list one by one. When you declutter, you often find items you'd forgotten you had. These finds can create a sense of serendipity and abundance that can boost your mood and increase your energy for tackling bigger issues.