My friend blurted out “I can’t take it anymore.”

Really? You can’t or or you won’t?

Stop saying you can (or can’t) do something. It only speaks to your perceived ability, but is also a non-commitment. Inaction follows non-commitment.

Start saying will (or won’t). These words speak to your commitment, and action follows commitment.

I already know you can. So don’t tell me that. Instead tell me if you will or won’t. I expect you to commit.