vocabulary for expressing щастя (happiness), сум (sadness), роздратування (annoyance) and занепокоєння (anxiety)

Emotions in Ukrainian: useful words & phrases

I'm sorry (both to express regret as smth has happened regardless of your participation or because of your fault)

До́сить! *
*when you are getting your wine glass filled you can say 'достатньо, дякую' - enough, thank you

idiom for 'to be extremely worried and restless'

Це ду́же триво́жна новина́