The honest way to handle this, which hopefully your therapist does, is not to claim that you can magically retrieve perfect memories from before 5 because you thought about it hard. What matters is what your impression is of what happened and what messages your subconscious is sending you. Whether or not it literally happened isn't that important and it's impossible to know.
The therapeutic relief comes simply from listening to your gut/subconscious and feeling the emotions that that brings up. Being a loving friend and parent to that part of yourself. You can do that effectively without pretending that you can know if the impressions are literally true or if that message your getting is simply the best way for it to express the emotions it's holding onto.
Again, you can maintain your integrity while being empathic and loving and listening to the message.
You are advocating for some controversial positions in psychology, without naming them – something roughly along the lines of Gabor Maté, "inner child work", reparenting, "Internal Family Systems", etc
Many psychologists who belong to different schools of thought – e.g. CBT, positive psychology – don't agree those practices are helpful and don't agree with their theoretical underpinnings
There is a lack of high quality empirical evidence for both the safety and efficacy of the kinds of practices you advocate, and also for the theories which motivate them. By contrast, more mainstream approaches such as CBT have significantly better empirical support
The therapeutic relief comes simply from listening to your gut/subconscious and feeling the emotions that that brings up. Being a loving friend and parent to that part of yourself. You can do that effectively without pretending that you can know if the impressions are literally true or if that message your getting is simply the best way for it to express the emotions it's holding onto.
Again, you can maintain your integrity while being empathic and loving and listening to the message.