Analysis of Dear Anxiety

Dear Anxiety,
What are you afraid of?
Are you afraid of me?
Are you afraid of the day our roles are reversed?
Are you afraid of the day you knock at my door and what happens isn't what you rehearsed?
Are you afraid of me having control?
Afraid of losing the one thing you know, me?
I, I  have nothing to fear,
Nothing to lose
You're in control, you made that clear  
But I'm not scared of you.
I'm not scared of losing what i've never had
Control
I have nothing to lose
But you, you have everything to lose
I want you to remember that
When you become my defining component
When you pursue my every moment,  
When nothing feels like a guarantee
I want you to remember
You'd be nothing without me