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A loaded word is a word that not only informs but also caries some emotion with it, such as condemning, exciting, praising. In the statement above the loaded word is "crushing" - it makes a qualitative statement about the defeat: it was a very definite defeat.
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
D. By using sharp specific language