In a precarious situation; in the trenches; up to one's elbows; knee-deep.
knee-deep in the Big Muddy
Stuck in a predicament; mired in a difficult situation, especially one…
hang in the balance
To be in a precarious situation, unsure of the future.
hang by a thread
To be in danger, calling for precise caution; to be in a precarious si…
have a thin time of it
To be in a difficult or precarious situation due to one not having eno…
play with fire
To put oneself in a precarious situation with a high risk of getting h…
in at the deep end
Placed in a complex situation (especially work-related) without adequa…