Ordeals of a stammerer

He is a shy stammerer, ashamed of this, tries to fight it, but ends up battling fear.

"You bloody stammerer, you screwed it again"
You could not introduce yourself just like other days!
My heart was pounding and fear took over me just on the thought and reality that I have to introduce myself again.
God must I always do this,
What kind of embarrassment am I about to face,
Today I am even next to Collins, he is gonna talk first.
My chest is pounding, I am pacing hard.
All my motivational quotes cannot save me, God help me,
Shit! It's my turn (whispering to self)