Solution:
no love lost: dislike, ill will, hate.

Solution:
Be in the mire: in trouble, entangled, in difficulties, encumbered.

Solution:
strained every nerve: to make the greatest possible effort.

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fishing in troubled waters: to involve oneself in a difficult, confused, or dangerous situation, especially with a view to gaining an advantage.

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floored: to surprise or confuse someone so much that they are unable to think what to say or do next.

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A square peg in a round hole: individualist who could not fit into a niche of their society.

Solution:
globetrotters: a person who travels widely.