Do I need to worry about the PSAT? Which section is the hardest?

psat isn't the SAT it's just to give you an idea of the SAT.. but the SAT is A LOT longer. You don't have to worry about it, the hardest part is probably the vocabulary, study a lot of vocab.. if you get an SAT prep book there will be a section where they give you all the vocab that is seen a lot in the SAT. Good luck