As part of learning to let go and fully trust your romantic relations, your therapist suggests an alternative method.
Okay, I'll say what it is. Are you familiar with BDSM? Gink.
Submission. This is what we're getting into. Please bear with me.
There's a variant within all of this where the focus is on completely giving yourself to another person. What I mean by this is that you would relinquish all control, all autonomy. You would not even be able to say no or exit or stop the treatment as it's happening.
You would have to commit fully and obviously this requires a lot of trust and I know this sounds very scary. The benefit though is that you do practice relinquishing control and my hypothesis is that this would allow you to lower your guard and feel in control almost paradoxically. By relinquishing control, afterwards or during, you end up feeling like you are in fact in control and that this should give you the confidence to pursue intimate relationships with other partners.