I recently took my HESI entrance exam and let me tell you I was soooo stressed! BUT it is not as bad as you think! I passed on my first try. I was so worried because I am not as strong with math and anatomy. I studied for a little over a month with the 3rd edition HESI book. It was such a big help!! I also used test-guide.com with their quizes if you have any questions feel free to ask!