1) I think that lady Macbeth feels her husband is just a way to get power and  doesn’t really think he’s good for the job as she says  he is too full of the milk of  human kindness. Lady Macbeth says about her husband that “Thou wouldst be great, Art not without ambition” which means she thinks he wants to be powerful. She also says he would not play false and yet would wrongly  win”  which I think  means he won’t lie but he is willing to cheat.

 

2)  unsex me –  she wants to get rid of her womanliness and be a powerful man because being a woman stops her from being aggressive and fighting for power.   As a woman in those times, all she can do is manipulate

chastise with the valour of my tongue –  she is describing her tongue as a sword which will which will beat Macbeth into into ambition.

pour my spirits in thine ear –  she wants him to think like her, she wants him to have some of her spirit.