Tu vieillis
aurevoir (if youre saying bye) par(if youre saying by like if youre writing a story)
Do you mean "how do you say older in French?". Because that would be 'plus agée'
mais tu n'es pas prêt / pas prête
grande soeur soeur ainée
You can say "Je vais mieux" in French to mean "I am getting better."
les dames âgées
Quand je serai plus âgé(e) / plus vieux (vieille)
To say "You're dumb" in French, you can say "Tu es bête" or "Tu es idiot." However, it's important to use such words with caution and respect for others.
This is how u say thank you for getting back in french:''Je vous remercie pour se remettre''.
'je vais me coucher, bonne nuit' (I'm going to bed, good night)
mon frère ainé.
s'en aller