When Jana was chiding herself for losing her favorite necklace and reciting a list of all the things she could have done to prevent the loss, her grandmother said, "Now, Jana. Don’t cry over spilled milk." In essence, Jana’s grandmother was advising her to .

stop engaging in counterfactual thinking

Explanation:

her grandmother advise her stop engaging in counterfactual thinking as  counterfactual thinking refer to think alternatives rather than to accept reality, in simple in such thinking human think alternatives about already held circumstances and past situations and events.  To think opposite than actually happened events , in simple deny reality.

just don't strip down in public lol

sir frederic attributed inaccuracies to schemas. memory reconstruction is one part actual events and one part personal schema, which can result in inaccuracies when memories are reconstructed.