Take an honest inventory. Write down six areas of your life: health and body, work or study, money, relationships and family, your mind and emotional wellbeing, and the habits that drain you. Beside each, write one sentence describing how it would feel if that area were thriving, then score from 1 to 10 how heavily it weighs on you right now. Are you maybe already happy with it, or is there big room for improvement?
Find the domino. Look at your two or three heaviest areas and ask Keller's question of each: if I changed this, what else would become easier? Late-night scrolling is a classic domino, because ending it repairs your sleep, which repairs your mornings, which repairs your focus. The goal that topples other goals is usually the right one!
Apply the relief test. Imagine it is the evening of December 31st and your most desired goal is reached/much closer than a few month prior. Notice which candidate brings the deepest exhale, and which one scares and excites you at the same time. Very often they are the same goal, and that is the one to choose! The one that would have the biggest positive impact on your life it were to come true, the one thing that would make you feel so much closer to your dream life!
Give it a finish line. Rewrite this one goal so that on December 31st you will know, without doubt, whether you achieved it. Make it specific, measurable, mostly within your control, and stretching yet possible in three months. Of course, some very big goals will take longer to achieve than three months of focus, however that doesn't mean that you shouldn't choose a goal like that. Ambitious goals are great, and as mentioned this is not a three month sprint, but instead a preparation for the ultramarathon of consistency that it will take to make those big goals happen in the long run. So, don't stray away from the big goal just because you think it's unrealistic to achieve in three months. Instead, break it up into your first milestone that you can indeed achieve within that period of time. As, afterwards the goal is to have created a routine for ourselves that allows us to keep going and stay consistent with it in the long-term ;)!

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How to Make the Last 90 Days of 2026 the Most Transformative of Your Year

How to use October, November and December to build lasting habits and reach the goal that will change your life, without burning out along the way.

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