“At a crossroads”

“Against all odds”

Despite very low chances of success.

“At arm’s length”

At a safe distance, emotionally or physically.

“Brush up on something”

To improve knowledge or skill by reviewing it.

“Blow your own trumpet”

To talk proudly about your own achievements.

“Back to square one”

To start again from the beginning after failing.

“Bottom line”

The most important point or final result.

“At the eleventh hour”

At the last possible moment.

“Keep someone at arm’s length”

To avoid becoming too close to someone.