I think that Clarke is going to 'break' in the next ep.
She's going to know what memories to hide and which to show them:
Show : she doesn't have the chip anymore
Show : madi doesn't have the chip anymore
Hide : madi has memories she doesn't understand
That way they understand that she's not the key anymore and same for madi, that will make them dig deeper in case she still remembers something, so she'll show her most heartfelt memories
Show : the moments with Bellamy, when he's present, to remind him who they are to each other
Show : how she spent 6 years alone on earth and maybe the radio calls, for bellamy too
Show : the memories of her losing the people she loves, one by one
It would just be pointless to speak of Clarke being the key for so long and not get through her mind with the mcap.
After that, she could also focus on showing the didciples who she is, how smart she can be, how she got up after every falldown and how she kept fighting through everything. How she, Octavia and raven saved the human race when the death wave occurred, and so much more.