In the period from June 2008 and June 2009 I was a seventeen-year-old teenager. In that period, I graduated from high school. I applied and got accepted at Delft University of Technology. I got to hug Pharrell Williams. I planned my first holiday with my friends. I was a bubbly and energetic teenage girl. I just came to the realization this is actually already ten years ago. While I have fond memories looking back, I also realize I (luckily) gained quite some knowledge over the past ten years that would have been valuable back then. This is what I would’ve loved to share about lessons to my younger self.