Maybe you feel you're not ready, have to gain more experience, or wait until you have less of a hectic life...Or even worse you're telling yourself it's too late...
What am I talking about?
I could talk about any happening in your life, a transition, that you don't really want to acknowledge...but one that still exist and continue to "pop up" in your life, reminding you that one day you really need to address it...but not today....
Just do it!
Take the thought, urge, desire to write a book, poetry, fiction or memoir as an example.
Writing is not a "sport" where you can claim you are "too old". No, writing is something you can start at any age and there's no excuse for not picking up the pen when you feel a burning desire to do so.
Do not "think" it's too late. Instead take a good look at yourself and the life experience you have gained, This is what you base a solid script on. Life is experienced at all ages. It's not a privilege for the "elderly" only. You'll have to make up your mind and decide if you are a person who talks about writing, or one who picks up the pen and write.
That's two completely different approaches. And one you need to make...today...not tomorrow...not when you "think" the time is right...
Just do it!