Les dictées aident - Dictées help
When I was learning French, I used to do a lot of "dictées". I would go online and find French dictées and it really helped me with spelling, agreements (masculine, feminine, plural), grammar, verb conjugations, everything on paper.
I suggest doing dictées occasionally because they do help you.
[Site with Dictées in French] (https://www.podcastfrancaisfacile.com/apprendre-le-francais/dictees-en-francais-fle)