Identifying Author's Tone in Exercise Essay

In her essay about the importance of daily exercise, the author describes her own experience of starting a workout routine. She writes, "At first, I struggled to find the motivation to go for a run every morning. But as the days turned into weeks, I began to notice a shift—not just in my energy levels, but in my overall mood. The fresh air felt invigorating, and each run became a refreshing escape from the daily grind. Now, I cannot imagine my life without this routine!"