How birthdays change as one gets older

As a kid I like all other kids valued my birthdays a lot. I had the feeling that teenagers did not pay as much attention to them as kids. And that adult somehow did not need their birthdays so much. And so has it gone in my life. As 40 years old I have noticed that birthdays are even difficultto celebrate, not so good days and times, but instead good for thinking of how time passes and how years affect. And now that after roughly one and a half years I will be 50 years ago, I cannot fiugure out how I could celebrate it or even spend the day in any special way.But I feel that there is a strong need for people in this age to tell to the younger ones how years affect and how one learns about life in different ages and how one learns wisdom of life, finds one's own roads in life and how one changes when one grows up andf ages. So I thought that isntead of celebrating my 50 years birthday I would try to write this blog.