I think the fact that you wish to divest yourself from these stories is a testament to the fact that your therapy is working. You want to be your authentic self.

FWIW, even the lies you told are likely based in some emotional truth. Perhaps an elaboration of a scenario to illustrate the feelings underneath.

We are often taught very very early that things have to be incredibly severe to warrant any kind of help or intervention at all. The fact is that need not be the case.

I would tell your therapist. It will be embarrassing sure, but, if I were your therapist I would jump for joy that you (1) wanted to tell me (2) were moving to your authentic self and (3) wanted to understand why this was happening.

I would at least give her a chance to not judge you and understand why you did what you did.