When wrinkles started to appear...

that show u undergo a positive aging process and your body still growing. I don't really care about this indications but this year, I can feel my legs become stiff and my mind feel so disturbed of moving from a safe side 20 to a non-steady 21. I dunno bout other people, but I have this terrible turning-21-year-old-discomfort feeling. There's a lot more to think of, especially on future plannings. How do I want my life to be like? What can I do to improve myself? etc etc

Anyone who have reached out 21, please gimme some suggestions to get rid of this...