For French, try using Duo lingo forums. Also order on Amazon some recommended workbooks and find old exam papers online too. There is a ton that you can do, here are some tips for your after school revision sessions here. Write out full practice questions, buy a pack of cheap flashcards, make full use of the colour coding technique, draw good pictures, and take odd timed breaks too. Make brief summary notes and limit overall phone time. Create colourful mind maps of articles etc. Produce a few different interesting cartoon strips and annotate pictures.