Paper and pen IS useful in students life. :)
I believe it is to warn because the poet is warning their father that if he goes to far, the poet will be lost
I don’t have a sister but ok sure
The correct answer is "positive self-talk"
It is extremely important to value yourself because if you do not value yourself, other will not value you.
There should be a period after writing it should look like this : " writing. She can"
the sentence also says "through her words" when after "words" , there should also be a period.
Other than the missing periods your sentence seems fine.
You could also use a comma after "writing" instead of a period and make the S in "She" a lower case.
I hope this helps you.
