Death anxiety

Why is it always the end?
Why is each happy moment
Plagued with doom?
A downward spiral
My world collapsing
I'm in prison to these feelings
What did I do to deserve this?
How long to break these chains?.
I'm getting older and I know we all die
We all die and I can't stop thinking about it
Death is lurking at any moment
We don't know when or how
Just that it's coming
Maybe next minute
Maybe next decade
I hate the fear
Obliviously it doesn't hate me
Bring me to my knees
Make me look like an idiot
Destroy my happiness
Suffer.....
I love life
Yet I'm so scared because I know one day, it will end