How do you say that i am not doing very well in french?

Here are a few ways to say "I am not doing very well" in French, depending on the context and the level of formality:

Formal:

* Je ne vais pas très bien. (This is the most literal translation and the most neutral option.)

* Je ne suis pas en très bonne forme. (This emphasizes the physical aspect of not feeling well.)

* Je traverse une période difficile. (This implies a difficult period, suggesting a broader issue than just physical health.)

Informal:

* Je ne suis pas au top. (This is a more casual way to say you're not feeling your best.)

* Je vais pas super bien. (This is a very casual way to say you're not doing well.)

* Je suis un peu dans le creux de la vague. (This literally means "I'm a bit in the trough of the wave" and implies a feeling of being down.)

Specific situations:

* Je n'arrive pas à me concentrer. (This means "I can't concentrate" and is useful if you're talking about your studies or work.)

* J'ai du mal à suivre. (This means "I'm having trouble keeping up" and is useful if you're talking about a class or a project.)

* Je suis un peu déprimé(e). (This means "I'm a bit depressed" and is useful if you're feeling down about something.)

Remember to adjust the level of formality to your audience and the situation.