One more year older

A year is just a measure, on a calendar, an astronomical event. So what does it mean, getting a year older ? Am I moving towards half life, or has my half life already gone by ? What If I just get stopped right now. Who all would be affected ?

What have I achieved in all these years ? 

Reminds me of an interesting quote - Even a stopped clock is right twice a day. Even If I end now, there should be atleast two right things that I would have done. Hmmm ....