She is staying in her lane and focusing on her own goals.

He stayed in his lane and focused on his own work.

He always stays in his lane and focuses on his own work.

Don't let anything break your stride.

To his credit, he always takes responsibility for his mistakes.

I'm going to do it on my ones.

Ask me one about sport.

Sometimes, taking shortcuts can blow up in one's face.

The experiment blew up in his face.

The experiment blew up in his face.