They mention she was going to have both sets of memories, but definitely having a childhood of her own will change her perspective on both her previous experiences and what comes next.

The Makers stated that she would retain both sets of memories.

Not sure how that would work but she’s not an organic being. Perhaps her original memories would have been encoded and available for access as she matured.

The gurl is a bot, and can read and relate to all earth plays in a day of gleeful scanning. Pretty sure she can experience growth from child to teen, then download and integrate a year at the academy and process that input with the new perspective, then move forward still being the same person, just being more complex as a result of the upgrade.

The biggest issue with her 17 year childhood is that she appears to be alone with one other hologram on a starship, which wouldn't exactly allow her to experience and process many normal experiences for people living in communities with mortal folk and pets n such--unless they added life like simulations, other school students, neighbors of varying ages and attitudes, pets that die...

She needed opportunity to deal with real world stresses as they typically increase in severity with age, but she just seemed to get a very performative and sheltered 17 year biological development cycle added to her program.

Seemed to miss the mark by a mile.