Don't make New Year's resolutions in January because it's a uniquely terrible time to try to change, with factors like the lack of sunlight and holiday chaos making dramatic changes unrealistic. Instead, focus on getting back into normal routines and build new habits throughout the year, as December is also a challenging month for motivation and self-improvement. The sun's absence during this period can affect human moods directly, especially in northern regions, leading to symptoms of Seasonal Affective Disorder (SAD) that can make it harder to start new habits. By skipping resolutions and focusing on gradual changes throughout the year, you'll be more likely to achieve lasting success.