How can an experience not be true "anymore". They must have been lies in the first place.
"Snapbacks"???? You need help.
Go to the experience and there will be a trash can right next to it. Press that.
For stories, the delete button is underneath. For questions, you'll have to go directly to your question and the delete button will be on the questiob.
Go to your experiences and where it usually says 'me too' there should be a trash can.