Tokimeku
Before you start deciding what sparks joy in your life, you must first get a true sense of the problems you face. For example, when organizing clothes, I ask that you take out all the clothes you own and gather them in one spot, so that you can visually comprehend how much you have.
What we don't often realize is that the furniture and closets in which we store our clothing have a remarkable way of concealing truths we would rather not see (a pilled sweater, for instance, that does not bring any joy). It's perfectly fine to take advantage of this masking effect on a small scale, but when the amount of things that you don't need continuously increases -- along with the time and space that you devote to accumulating those things -- you will find that it becomes harder to lie to yourself.
We also work in much the same way. We often hide our problems inside the closet of our hearts as if they never existed. Whenever my mind clouds over and I feel overwhelmed, I immediately take out a sketchbook. I write down all the emotions that I feel and the possible reasons behind them across a blank white page.