"Je me sens comme une personne complètement différente de celle que j'étais dans la vingtaine et j'adore ça"

Simplified Meaning:

As people grow older, they often change a lot from who they were when they were younger. When you're in your 20s, you're still figuring out who you are, making mistakes, and learning what you want out of life. By the time you get older, you've had more experiences and learned more about yourself, which can lead you to feel like a completely new person. For example, imagine someone who was very shy and unsure of themselves in their 20s. As they grow older, they might become more confident, have a better understanding of their strengths, and feel happier with who they are. This change can make them feel proud and satisfied with how far they've come. This means it's okay to change and grow over time. Embracing who you've become can make you happier and more confident. Instead of wishing to go back to the past, it's better to appreciate who you are now and how much you've grown.