Hi Damiana,
Welcome to the Forum.
I need poetic or epic-style I'm no sure what you mean by 'epic-stye' equivalents for the following:
This is not an easy request. Poetry calls for the original and unusual, not just a synonym.
to help ("To extend a helping hand" seems too formalistic to me, and I have not ever come across any idioms with the similar meaning); to lighten someone's burden
to dislike; to turn your countenance away from
to value ("To hold in great honour"? Any other suggestions?); to cherish
to make a mistake; to err. to fail. to fall.
to fail one's expectations; (not exactly sure what you mean) to disappoint. To fail
to take occasion; (don't know what you mean) to seize the moment?
a daydream a lyrical transport (And what if a person is having a daydream at night?); a nightmare
to fall a victim to smth; to be felled by something. To run afoul of
to become angry. to be filled with wrath. to be consumed by an all-encompassing fury that shakes the essence of your soul . . .
Now I remember why I don't write poetry.
Best wishes, Clive