Yes sometimes we think its a writer's block too until we realize its the very pen itself that is having problem!

What's gone wrong with me???
I am not able to write a single thing.
What had stopped me?
Is the darkness roared,
Or the light cracked,

^^Here I feel it will read better if the "is" is replaced
with "has=has the darkness roared or has the light cracked. I also feel maybe another line can be added after "what had stopped me?"

What going in the world,
That has stopped me.
I can't write anything, why why why?

^^What's going on in the world (will read better)
which has stopped me
I can't write anything
free, free, free!

Breaking up the sentence will be another good idea and a little subtle rhyme will make it sound nice and when you read it perhaps makes the reader's thought
to expand..

Just a few suggestions see how you like it :)
Keep penning!