Need help, Barron's SAT II history book

<p>I am freaking out about this. Taking 2 practice tests from Barron's book, I got a 58 out of 98 on the first test and a 65 out of 95 on the second one, which traslate into 620 and 670 respectively on the Sparknotes scale. I thought I would get close to 800 on this thing, because I had studied a lot for APUSH (which contained only 2 questions I didnt know for sure on the MC section). Has anyone else experienced the enormous difficulty of the Barron's exams? Please tell me there's like a 150 pt. difference between Barron's and the real thing. I need to know this, so I don't go beserk and study for 10 hrs everyday for the next 2 weeks.</p>

<p>Oh yeh, anyone know where I can get some free practice tests online, cuz I really don't feel like goin out and shellin another $20 for a prep book since Barron's is ****.</p>