"All of a sudden..." is a transition that shows suspense. It says something happened, but it didn't happen with any warning and it doesn't tell the reader up front what went on or if it was good or bad.
A line of reasoning that presents the opposite side of the author's argument is called (I believe) a counterargument. It states exactly the different thing from what you have first stated.
Answer:
to give the reader an idea of the complicated work required for the garment worker’s strike
Explanation:
Took the test on Edgenuity...
Answer:
I would say internal roadblocks because self doubt is in the mind, and not practicing regularly seems to be channeling from the self doubt.
Forgetting training uniform could be caused by this person having things on their mind (self doubt).
I hope this helps