Undecided questions
it's the french grammar difficult?

very difficult! But it is learning itself

Selamat pagi Nedya. It's structure is different from Indonesian. This site is useful and you can translate the page to Indonesian. Good luck.

French I Tutorial: Basic Phrases, Vocabulary and Grammar • Learn ...
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Comprehensive and free grammar and vocabulary review of French, including slang and informal ways of speaking.

www.ielanguages.com/french1.html

Bonjour = Hello

Yes French grammar is difficult but not impossible to learn!
Good luck !

Well..french grammar is more,at least,difficult than English's grammar,easier than Japanese,German and Russian's grammars..but I think you can ace it if you bend your efforts to learning it.

La grammaire du français est très compliqué , je crois qu'elle est une des plus difficiles lange dans le monde .

think of it like you are preparing a very delicious dish, but you have to put the exact quantity of ingredients at the right time while cooking it...by trying and trying no matter how many times you fail, you'll master it :)....the key is motivation!