one's door is open

She always stands on her dignity, even in difficult situations.

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.

He blows his top whenever someone interrupts him.

He is blowing his top because of the delay.

He blew his top when he found out about the mistake.

He has blown his top and yelled at his employees.