ولايتي جداً جميلة
should be an acceptable answer
this is not proper Arabic.
جدا should come after the adjective it emphasizes. Doing the opposite something common in some dialects.
Yeah I'm a native so I think I'm not seeing the line that separates formal Arabic and our dialect
why is there وِ at the start
This is part of the word. ولاية (wiláyah) means "state"
ولايتي (wiláyati) means "my state"