How do you measure a year in the life?

I want to write more about the topic of the other day.
We (especially me!) have a tendency to spend many days without giving it much thought about something.
And I'm usually thinking that's going to continue forever.
Even if we are knowing that it will probably finish suddenly.

I thought about "how do I measure a year in my life?"
First of all I can measure in sunrise and in sunset.
And I can measure by what I have eaten everyday.
I can also measure by smiling, laughing, crying and loving.
I feel that if time is all the same to me, I want to do something fun.
I wanna do what I wants so as not to regret any passing day because of "Life is short".