What am I #3: Chapter 1

You can fear me.

You can possibly enjoy me, if you dare.

I'm not one who likes a happy ending, but I'll grant it if you wish.

Many people hate trying me out.

But it's one we must all take once in our lives.

They can end happy

They can end sad

They can end peacefully

They can end Disasterous.

It depends on the reason for it… and you.

It may not be obvious, but think about it.

But all I know is…

Life's all about me.

What am I?