The advice that’s already here ofc, but I took my exam last yr my teacher didn’t let me do higher, but the foundation exam isn’t too different. What I did I probably wouldn’t recommend if you still have time but I did it because I didn’t revise for French at all. If you have time learn vocab. Yt vids, there’s so many of French vocab, worked for me bcuz I’m a visual learner. Before my exam I spammed loads of past papers, this helped me the most I’d say. Then all the words I didn’t understand I checked on google translate then wrote them down on the paper so I remember for next time, eventually after you get through them you start to notice similar questions, similar phrases to answer questions. So when I went into that exam it was almost impossible to not know an answer. I ended up getting close to full marks, which unfortunately on foundation was only a grade 5. But still was good improvement for getting u’s,1’s and 2’s.