"by the way" and "love is blind" Hi! anyone can help me out with this idiomatic phrases? Thanks a lot

Hi! can anyone tell me the most useful/frequent idiomatic phrase in francais? Merci bcp!

Quoi de neuf? Hi! anyone can help me out with this idiomatic phrase? N whom are we can say it to? To elder people? or just to friends or family? Thanks a bunch

"Still a long way to go" in french. Hi! anyone can help me out to give the idiomatic phrase for this?

Hi! Can anyone help me out with the COD and COI in French Grammar? Im still not convinced in differentiate when it is supposed to use COD, and when it is supposed to use COI. Thanks before!

what is the difference between "voudrais" and "veux" in french? thanks before.

How can i improve my french without a teacher? (to learn otodidactly).. Thanks before..

What food of other country do you wish to try?