“Down the road”

“A slippery slope”

A situation that can quickly lead to worse problems.

“A smooth ride”

An easy and trouble-free experience.

“A tall order”

A difficult task or demand.

“A numbers game”

A situation where success depends on trying many times.

“A losing battle”

A fight or effort that is unlikely to succeed.

“A rough patch”

A difficult period of time.

“A long way off”

Far in the future or far from being ready.

“A tight spot”

A difficult situation.