If there's something keeping your mind wandering, allow yourself a specific (特定的) time to worry, think or plan.

如果你因为某事心不在焉，那就给自己专门腾个时间用来焦虑、思考或是做打算。

youdao

It`s common when you come back to work after a long holiday to find your mind wandering, especially after Spring Festival.

长假尤其是春节假期过后，很多重回工作岗位的人都会发现自己根本不在状态。

youdao

The plan didn't work. Some spirit of rebellion stirred in the son, sending his mind wandering during marathon prayer sessions, and he broke free in his teenage years.

父亲的计划落空了，儿子内心已经涌动着某种反叛精神，他的思想在漫长的祈祷之中开始彷徨，十多岁的他便冲破了束缚。

youdao

She references a few studies that equate mind wandering with negative feelings and depression.

FORBES: The Path to Happiness? Be a Working Mom

Was my mind wandering that day, thinking about an upcoming exam or how much homework I had to do that evening?

FORBES: What I Learned from Leaving the Safe Unlocked

Another tactic: Build time for mind wandering into daily routines, breaking away from tasks requiring concentration to take a walk or run, look out a window or do some relaxing, routine physical task.

WSJ: Tactics to Spark Creativity