Is a birthday a celebration of the end or beginning of the year?

Greetings friends.

5 and 5. What can we do with these numbers, what will be the result? It all depends on the desire of the manipulator of numbers. In my case, it turned out to be the beginning of a new annual life cycle. The number 56 loomed ahead, and 55 remained behind.
Yes, I turned 55 3 days ago.
What are we celebrating at a birthday party? That a person has lived for a year or that he starts living the next year? On January 1, we are glad that the New Year has begun, and not the end of the Old Year.
With age, many questions arise. Almost all my friends congratulated me on my anniversary 3 days ago. But in my opinion, 55 years is not an anniversary.
Until 2019, women in Russia retired at the age of 55, but now they have to work until the age of 60 to earn a pension. I still have 10 years to work before retirement. If you really look at what is happening in Russia now, then this is not a very easy task. But, of course, we always want to live up to at least 100 years old.
100 years is a wonderful anniversary. But at the moment I have a goal - 60 years.
What are the results for the past 55 years and what goals can I set myself for the next 5 years? I have a younger daughter and she turned 16 yesterday. This is the main task for me and my wife. The daughter has 2 more years to study at school, and then she must choose the main direction of her further studies and life. It's difficult.
Now she enjoys learning English and programming. It seems to me that she sets ambitious goals for herself and I think that everything should work out for her. But I have to help her with this.
In the meantime, my most immediate tasks and goals are to try to write daily articles on my favorite Hive platform.