There’s no right way to be twenty-five. Because there’s no one, single, specific way to be human. As long as you keep your eyes open, as long as you keep trying new things and working hard and refusing to accept mediocrity as your fate, you will be okay. You will be happy. You will be exactly where you’re supposed to be.
It's very simple. As you grow, you learn more. If you stayed twenty-two, you'd always be as ignorant as you were at twenty-two. Aging is not just decay, you know. It's growth. It's more than the negative that you're going to die, it's also the positive that you understand you're going to die, and that you live a better life because of it.