practice, practice, practice.
read over vocab lists, as you cant use a dictionary
walk around the house talking to yourself (ie im hungry, i would like some bread, i studied for an hour, in french obviously)
concentrate on expressions cles, ie key expressions for each topic (find them in your text)
go over as many irregular verbs as youcan-the only way is to learn them by rote.
write down how you form different tenses that you have done ie perfect, present, near future, imperfect, future if you havedone it, and out them up around your room.
from the topic areas, do writing tasks ie on your last holiday, your family or whatever, if possible get your prof to mark them for you.
if you're feeling lazy, watch french films!!
good luck!! (i havent started studying for continuers or ext yet myself!!!)