Here’s a link to the past papers section of the SQA website:
https://www.sqa.org.uk/pastpapers/findpastpaper.htm?
Try all the papers as tests, time yourself and so on, then mark them according to the marking instructions (mi). Make a note of any vocabulary you didn’t know. If you don’t have a dictionary at home, Collins online French (or German, or Spanish) dictionary is a reasonable, and free, option.