freaking out

we got our take home midterm for stats on thursday. i was ok. i thought i was ready. then the emails started pouring in...people having problems with this question and that question and what does this mean? yadda yadda yadda.

am i doing everything wrong because i didn't have those questions? and the answers from the TA are more confusing to me....aaaauuuuuuuuggggggghhhhhhhhhhhhh