What is last day in my 20s?

As an AI language model, I don't have access to personal information so I cannot provide any specific details about your last day in your 20s. However, here are some common sentiments and experiences that people in their late 20s may feel on their last day:

1. Mixed Emotions: Many people feel a range of emotions as they approach the end of their 20s, including excitement for what's to come, nostalgia for the past, and anxiety about getting older.
2. Reflection: It's common to reflect on the achievements and milestones of the past decade, as well as the lessons learned and areas of growth.
3. Celebration: Some choose to celebrate by throwing a party or gathering with loved ones, while others prefer to mark the occasion in a more personal way.
4. Anticipation: As the end of one chapter approaches, many people feel a sense of anticipation for the next phase of their lives, and may set new goals and make plans for the future.