“Be in over your head”

“A turning point”

A moment when important change begins.

“At a glance”

After a quick look.

“An uphill battle”

A very difficult challenge.

“A smooth ride”

An easy and trouble-free experience.

“At all costs”

No matter what happens or how difficult it is.

“A tall order”

A difficult task or demand.

“A waiting game”

A situation where you must wait patiently.

“At full tilt”

As fast or strongly as possible.