You think you will never forget feeling this way. The emotion, the memory, burns in you, consumes you.
You will forget. The details will blur, shift, fade, disappear.
The daily journal is your chance to chronicle your life: the feelings, the details.
When older, and those younger in your life ask you what it was like — when they accuse you of never being young yourself! — the record will stand as you have written it today.