<p>At my school I ended up loving the language in my junior year and my school would not allow me to skip 4 to go on to 5 and AP. So i made an arrangement (take 2 online classes for 2 free blocks during the day) with my teacher to audit the 5/ap class and learn everything while also taking Latin 4.
I did that with 3 semesters of latin behind me, and i think i did well on the test. What you need is to get as many books as you can, learn the basics in a week or two, then cram poetry and Vergil (memorize it, there is no other way). Through the vocab increase your vocab so have Eng trans on hand, and for Vergil read a translation of the Aeneid then the Latin. If you can give dedication to it is possible to do well, but itll take a lot of dedication and repetition.</p>