Focus the portion of your mind that runs in frantic circles--over issues, what ifs, the future, the past—on the weeds. Put your energy into them.

Periodically ask Jesus a question about weeds.    

What would You like to up root from my life?

How do they get here? 

Why are they so tenacious?

Occasionally pray the name, “Jesus,” as a simple prayer then listen.

Ask Him to tend you as His own garden.

Not a lot of conversation, but use weeding as a time to practice single-mindedness, shushing other thoughts, and giving Him room to speak.