This reading is kicking my butt. I am so much lost into the words.
Anyone else feeling the same?
Not I.
lol… you are already a chartholder… you sure did kick its butt! 
what specifically is confusing you
I was feeling that way about central limit theorem when I started looking at problems. But i don’t feel so bad when I look at the questions again. Hopefully it will stay that way.
If this reading is troubling you so much you can take the help of videos .And try to solve as many questions as possible as it will help to clear your concept.