Somewhat related: sentence completions / fill-in-the-blank templates are shockingly effective at eliciting your inner thoughts which even you didn't know you were feeling. The idea is from Nathaniel Branden's work.

"What I regret right now is ____"

"What I should now is ____"

"I am become aware that ____"

You don't need to journal these on paper. Don't do these in public. You might find yourself overwhelmed by what comes out.