What is to be working as powerfully and effectively as possible
That's a double whammy.
What is a situation that is bad in two different ways?
I've had a back seat driver with me for the whole trip.
What is someone who gives unwanted and unneeded advice, and sometimes also criticism?
fly by the seat of your pants
What is you're acting on instinct, using your judgment and perceptions as events unfold to improvise without advance planning?
keep your eyes peeled
What is to watch very carefully for something?
ignorance is bliss
What is a person who does not know about a problem does not worry about it
What am I? Chopped liver?
What is frustration or anger at being ignored on a social level?
fair weather friend
What is a friend who supports others only when it is easy and convenient to do so?
up the creek without a paddle
What is in a difficult situation, with no way of getting out of it?
That game was a real nail biter.
What is very exciting because you don't know how it will end?
We all have cabin fever.
What is the feeling of being frustrated and bored because you have been inside for too long?
burned out
What is to stop working because you have become ill or very tired from working too hard?
It's time to clear the air.
What is to get rid of a tense situation by settling misunderstandings?
poker face
What is an expression on your face that shows none of your feelings?
a bitter pill to swallow
What is something that is very unpleasant but must be accepted?
no ifs and or buts
What is no excuses allowed?
You missed the point.
What is you don't understand what it really means?
to call someone's bluff
What is to challenge someone's statement or threat because it is not believed?
to blow off steam
What is to get rid of strong feelings by doing a vigorous activity (going for a run, being loud)?
feeling like a 5th wheel
What is someone or something that is not needed or wanted in a particular situation?
get up to speed
What is you have all the most recent information that you need about something?
as the crow flies
What is to take the most direct route somewhere (the shortest path between two points)?
back to square one
What is to indicate that you are going back to the beginning or starting over?
know the ropes
What is to be familiar with the details of an operation or job?
Don't count your chickens before they hatch.
What is don't just assume that something will or will not happen?